£327 Find Cheap Flights from Glasgow to Washington – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Glasgow to Washington departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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1 adult, Economy, 0 bags

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Book Cheap Glasgow to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Glasgow to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Glasgow to Washington

Tue, 6 Oct - Tue, 27 Oct
Finnair Logo
13:05 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
30h 30m1 stop London Heathrow
Finnair Logo
19:45 - 18:15SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
15h 30m1 stop London Heathrow
£576Finnair
Tue, 6 Oct - Tue, 27 Oct
Finnair Logo
13:05 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
30h 30m1 stop London Heathrow
Finnair Logo
19:45 - 18:15SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
15h 30m1 stop London Heathrow
£614Finnair
Tue, 6 Oct - Tue, 27 Oct
Finnair Logo
13:05 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
30h 30m1 stop London Heathrow
Finnair Logo
19:45 - 18:15SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
15h 30m1 stop London Heathrow
£615Finnair
Mon, 18 Jan - Fri, 22 Jan
Icelandair Logo
11:35 - 17:00GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 25m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:35 - 09:55SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
11h 20m1 stop Reykjavik Keflavik Intl
£616Icelandair
Mon, 7 Sep - Mon, 28 Sep
Icelandair Logo
14:35 - 11:45GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
29h 10m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:00 - 13:25SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
10h 25m1 stop Reykjavik Keflavik Intl
£622Icelandair
Tue, 6 Oct - Tue, 27 Oct
Icelandair Logo
14:20 - 20:40GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
14h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:35 - 09:55SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
11h 20m1 stop Reykjavik Keflavik Intl
£642Icelandair
Tue, 6 Oct - Tue, 27 Oct
British Airways Logo
05:55 - 11:35GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
13h 40m1 stop London Heathrow
British Airways Logo
15:14 - 15:50SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
17h 36m2 stops Chicago O'Hare Intl London Heathrow
£679British Airways
Thu, 15 Oct - Mon, 19 Oct
British Airways Logo
07:00 - 20:15GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
21h 15m2 stops London Heathrow Chicago O'Hare Intl
British Airways Logo
20:20 - 18:40SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
14h 20m1 stop London Heathrow
£712British Airways
Thu, 15 Oct - Mon, 19 Oct
British Airways Logo
07:00 - 20:15GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
21h 15m2 stops London Heathrow Chicago O'Hare Intl
British Airways Logo
20:20 - 18:40SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
14h 20m1 stop London Heathrow
£714British Airways
Sun, 20 Sep - Thu, 24 Sep
Aer Lingus Logo
15:55 - 17:10GLA  Glasgow Intl-SEA Seattle/Tacoma Intl
33h 15m1 stop Dublin
Aer Lingus Logo
19:10 - 15:25SEA  Seattle/Tacoma Intl-GLA Glasgow Intl
12h 15m1 stop Dublin
£819Aer Lingus
Booking Insights

KAYAK's insights & trends for Glasgow to Washington flights

Get data-powered insights and trends into flights from Glasgow to Washington to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Glasgow Intl Airport to State of Washington?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Glasgow Intl Airport to State of Washington departing in October.

Flight prices are below average for this route right now.

Flights to State of Washington from Glasgow Intl Airport usually cost between £668 and £1,047 in October.
The lowest price found in the past 5 days was £576 on Finnair (6 Oct–27 Oct).

What is the cheapest month to fly from Glasgow Intl Airport to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Glasgow Intl Airport to Washington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Glasgow Intl Airport to Washington is February, when tickets cost £0 (return) on average. On the other hand, the most expensive months are August and December, when the average cost of return tickets is £757 and £734 respectively.

Good to know - Cheap tickets from Glasgow to Washington

Cheapest flight

£327
Most popular time to fly (5% more expensive on average)
Flight from Glasgow to Portland

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Glasgow to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Glasgow to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Glasgow to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Glasgow to Washington is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Glasgow to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Glasgow to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Glasgow to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Glasgow to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines flying from Glasgow to Washington

 
See real verified KAYAK customer reviews for airlines flying from Glasgow to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Glasgow to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Aer LingusOverall score based on 1693 reviews
7.0Entertainment
7.5Boarding
8.1Crew
6.7Food
7.2Comfort
Airline reviews

Caring & friendly crew. Most important: got us SAFELY to our destination!

8.0 ExcellentTania, May 2026
Read more Aer Lingus reviews

Caring & friendly crew. Most important: got us SAFELY to our destination!

One of the best flight experience I have had in along time. Would fly with them again.

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

Dear Aer Lingus Customer Care, I am writing to formally raise a complaint regarding my recent experience on Aer Lingus flight EI53 from Dublin to Seattle on 22/08/2025. Both my wife and I were seated in 15D, 15E directly under a faulty air conditioning unit. Even though the unit was switched off, cold air continued seeping through the sides and blew directly onto us for the entire duration of the flight (over 9 hours). We reported the issue to the cabin crew, but the only attempted solution was placing a piece of food-packaging sticker over the vent. Unsurprisingly, this had no effect. When we pressed further, the crew told us: “It is hard to fix it because we don’t have an engineer on board.” As a result, my wife and I remained exposed to constant cold airflow for the whole flight, and both of us became unwell afterwards, experiencing chills, sore throat and fever at the end of the flight. This has caused significant distress, disrupted our work plans. This experience highlights both a serious maintenance issue and a lack of adequate care for passengers. We therefore request: A full investigation into the defective AC system on this aircraft. An explanation of why no effective remedy (such as reseating us) was provided. Compensation for the illness and disruption caused to both myself and my wife. We ask for a full written response within 28 days. Should this matter not be satisfactorily resolved, we are prepared to escalate the complaint to the Irish Aviation Authority and Commission for Aviation Regulation and other relevant authorities. Thank you for your urgent attention to this matter. Sincerely, Temuujin Tuvshingal Myagmarsuren Ganbold

The space between seats has reduced even further making it extremely uncomfortable. Couldn't even open the tray table properly or got compressed the moment the front guy reclined.

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

One of the worst airlines I ever flew. Boarding is a disaster, they are always late, the planes are overly crowded. Everyone on my flight lost their connection because they were 2h late. Reykjavik is also not the best airport out there.

Well! They got me as far as Iceland, let me wait around at the airport since my next flight had either left or canceled, finally gave me my luggage, and sent me to wait quite some time with seven other people for a ride to a hotel. At the hotel we got a chef's salad, a nice room for the night which unfortunately had feather pillows and duvet (allergies), a really great and spectacular buffet for breakfast (small but stunning), taxis back to the airport for the 9:30 Delta flight back to Minneapolis. The Delta flight has free food and liquor included which Icelandair does not. All in all, it falls far short of my worst ever United flight to SGN. Icelandair did change my reservation after my roommate tested positive for COVID and we canceled our plans to travel around Iceland, but the charges were fairly hefty. I had trouble contact Kayak's agents to discuss changing my reservations and finally contacted Icelandair who changed them. (I used their contact form and put in several requests for call backs.) Of course, they called just after I made the change with Icelandair.

Flight was delayed. They did a terrible job rebooking me. Agent on the ground was useless. The partner airline who ran the plane was able to help me but Iceland air was useless

Flight delayed Delay to the gate upon arrival Baggage took more than an hour so we missed our connecting!!! Terrible experience!

I have noticed that the airlines, including this flight, pretend there is going to be turbulence, announce such, and say they can’t do beverage service. There is no turbulence and the seat belt light goes off 10 minutes before they ask for tray tables up and seat belts back on. They are just trying to spend less money and it’s quite transparent

I enjoyed the flight. I did find it strange that when I arrived at my seat although I had paid for a window seat that I was assigned a middle seat. Thankfully I was between a couple and they wanted to sit together. Please do a better job with this BA!

Flight was fine, food much better than anticipated, and flight attendants were helpful and friendly!

The lack of organization at the boarding gate was shocking. It was impossible to determine where the line was and it was hard to understand the announcements. It was so confusing that my wife wanted to get on the wrong flight. I am also annoyed that BA is adopting the sleazy policies that the budget airlines invented of charging extra for even the first checked bag or choosing your seat.

My flight was cancelled and I was rebooked onto 2 flights on American Airlines: one from Heathrow to Charlotte and then one from Charlotte to Tampa.

My flight out of Miami was delayed by 2 hours which meant I had to quickly make other arrangements for pick-up in Glasgow. A $9 voucher for food was issued. That’s not much of a gesture in my opinion.

We were never contacted that our flight from Glasgow to London was delayed. Got to airport six hours early to find that we were going to miss our connecting flight to BWI. Our flight is scheduled for two days later and they only gave us a voucher for one night hotel. E we’re delayed on the front end too and had to fly to Edinburgh instead of Glasgow arriving six hours and taking a $200 cab!

The crew were very friendly and helpful. Also, the airline was very strict and not very helpful when I wanted to start by boarding from Heathrow airport instead of Glasgow international airport. I stayed 10 hours in the airport and no hotel or any form of compensation was provided. That sucks.

Flight canceled two hours beforehand, BA reticketed us so that we would have had to leave from Edinburgh instead of Glasgow, where we were already at the airport. We would have arrived in Boston too late to get home to Vermont. Instead with some pressure we were reticketed from Glasgow on Lufthansa, which avoided Heathrow, a great benefit after our horrible experience at Heathrow when we arrived in Britain three weeks earlier. (Kayak assebled an itierary that did not leave adeqate time for the connection at Heathrow, where thousands of people were trying tio get through inadequate and badly staffed security and staff did not know the slightest details about where and which lines we should get in.) The British Airways travel experience is not to be recommended these days.

Sitting in the plane for an extended period of time was very hot and uncomfortable. Very late arrival happened to not affect me but many others probably missed their connection because it also took a long time to get to the terminal.

Everything you need to know for your flight from Glasgow to Washington

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