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Cheap Flights to Seattle
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Price, demand, and travel trends for flights to Seattle
Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.
What is the cheapest flight to Seattle?
London Heathrow Airport to Seattle is the cheapest route at £415 return, found in the past 5 days on KAYAK. KAYAK data shows this is also the most popular route.
How much is a flight to Seattle?
Average and cheapest price for all return flights to Seattle from each origin found by users searching on KAYAK in the last 12 months.On average, a return flight from the United Kingdom to Seattle costs £631, based on KAYAK data over the past 12 months. Return fares from London average £610, while Birmingham runs a bit higher at £647.
What is the cheapest day to fly to Seattle?
Wednesday is the cheapest day to fly to Seattle at £626 return on average over the past 12 months on KAYAK. Sunday is the most expensive at £726.
What is the cheapest month to fly to Seattle?
To calculate monthly average prices, KAYAK takes all prices for each month over the last 12 months for flights to Seattle, removes the top 0.1% to account for outliers, then takes the median of all values for each month.•February is the cheapest month to fly to Seattle with an average price of £501 return.
•July (£671) and June (£663) are the most expensive.
•Based on KAYAK data over the past 12 months.What is the cheapest time of day to fly to Seattle?
Average price for all return flights depending on time of departure, seen by users on KAYAK in the last 12 months.Night flights to Seattle are the cheapest at £540 return on average. Morning flights are the most expensive at £666.
What is a good deal for flights to Seattle?
Flights under £531 are considered a good deal. 25% of KAYAK users found return flights to Seattle at or below these prices, with the lowest fares from:
•London £513.
What are the most popular airlines flying to Seattle?
Based on KAYAK data over the past 3 months.Virgin Atlantic is the most popular airline flying to Seattle among KAYAK users, followed by Alaska Airlines and British Airways.
Which airline offers the most direct flights to Seattle?
Based on KAYAK flight schedule data, reflecting busyness trends for the next 3 months. Weekly flight counts are averages and may change as airline schedules are updated.British Airways operates the most direct flights to Seattle, with an average of 10 per week. Delta follows with 7 weekly direct flights. 3 airlines fly direct to this destination.
How many direct flights to Seattle are there each day?
There are around 4 daily direct flights to Seattle. 25% depart in the morning and 75% in the afternoon.
How many direct flights to Seattle are there each week?
There are 24 direct flights to Seattle each week. Tuesday is the day with the most departures at 17%.
How many long-haul flights are there to Seattle each week?
Based on KAYAK data for the upcoming 3 months.There are 24 long-haul flights (6–12h) to Seattle each week, along with 0 medium-haul (3–6h) and 0 short-haul (up to 3h) flights.
How many cities have direct flights to Seattle?
Based on KAYAK data for the upcoming 3 months.1 city has direct flights to Seattle. London has the most with 24 direct flights per week.
Expert advice for your flight to Seattle
Key details for flights to Seattle
Low season | February |
|---|---|
High season | July |
Cheapest flight | £344 |
When to book flights to Seattle
Your questions about flights to Seattle, answered
Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.
Your guide to booking Seattle flights
From booking to airport arrival, find tips to help you plan your flight with more confidence.Reviews of the top 5 airlines flying to Seattle
My ticket was mistakenly not ticketed properly and I had to buy another ticket and you haven't reimburse me yet.
My ticket was mistakenly not ticketed properly and I had to buy another ticket and you haven't reimburse me yet.
Good. But these constant surveys are becoming wearing. Buy a clue.
I did not feel secure that the staff knew all that they needed to, especially for securing the seats that I wanted for my next flights. However, they were friendly.
Service is always great with Alaska. Baggage services seems to be delayed in Seattle but Alaska airlines follows up with excellent customer service
Nice planes, Great crew. Ok snacks. One of the better airlines. Ok price.
It sucked. It was so warm the whole flight I had to use a cup of ice to cool me down. It was cramped and it smelled. There were screaming babies.
The people were great, the plugs were European with no adapters, and the snack was seven pretzel rods. The flight entertainment require the Wi-Fi that my browser couldn’t load.
Alaska Airlines is the absolute best. I am so pleased with their service and attention to detail. They are one of the last remaining airlines where you feel like a person rather than a herded animal. Thanks Alaska!
Alaska over booked a flight and we had to scrabble with two young children to try to reach Seattle for our connecting flight.
As always the crew were super polite and friendly, sadly the weather & a minor mechanical issue reduced the quality of the flight, all’s well as it turned out. Still my favorite airline to fly with
Lounge was top notch h with great variety of food and drinks. Cabin crew were great. Smooth flight.
My seat 3G did not go down fully and the buttons were not working properly
Food was the worst I’ve had on a VA flight. Normally it’s a lot better
The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great
Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.
Security area in terminal 3 needs to be made much nicer. Less claustrophobic and use of glass and big ceilings wouldhelp
accomodating check in staff, friendly flight crew ( a crew member was speaking tactlessly and was overfamiliar with passengers
Seats need to be updated. Allowance needs to be made for dinner service at an alternative time
The crew should demonstrate flexibility by moving a screaming infant to its own seat with 1 parent
If I could fly Virgin Atlantic airlines to every place, I need to go, I would. Leaving Heathrow through the special virgin air entrance, security is completely white glove service. I love this airline. From ticketing agents to flight staff everyone tries to make it a wonderful & happy flight experience. I wish other airlines copied the positive culture of Virgin Airlines.
Didn’t have requested food and seats could be more comfortable.
I was advertised a free seat selection for a "Smart" fare through BusinessClass.com. I was never able to select a seat. I thus paid extra for a bill of goods I was never provided. would love to speak with a representative of Kayak
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
I was pleasantly surprised and enjoyed the services of the airline since flying is not my favorite thing. My goal was to be with my brother's family in Manchester after his death. All staff was helpful, the food appreciated since I selected an overnight flight. Every aspect of the experience was comforting. I plan to return to Manchester in order to attend my brother's funeral in October and hope that I am able to find a reasonable priced flight. Thank you
Very good except for the boarding process which was more hectic than it should have been
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
I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.
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.
Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.
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.
Great experience in Saga Premium. Food was tasty and felt fresh. Seat was comfortable (enough) - would have wanted a layflat seat.
The flight itself was excellent, but getting to the plane was literally an exercise in pain. My wife needs a wheelchair and can only stand/walk for short periods before having extreme pain. We had to take a bus to a loading platform and use a terrible elevator to get up to the plane. Meanwhile the rest of the bus were using the stairs. This meant the people who needed to sit down were stuck standing at the end of the line while everyone else boarded. My wife was in agony.
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.
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.
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!
Crew members were thorough in checking seatbelts and whatnot which makes me feel cared for because passenger safety is a main concern.
Smooth flight. The seats were comfortable but the reclining mechanism didn't work very well. My wife's seat required the flight attendant to push the seat forward while she pushed the button. The leg support didn't want to return to its home under the seat. I ordered the diabetic meal which was full of carbs. It was low in sugar but carbs turn into sugar so was it really diabetic? Overall the flight was pleasant, long but pleasant.
The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.
Adequate to good experience. Comfort was mediocre but everything else was good..
Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.
Had a very bad experience flying out of London. Our initial flight was cancelled without notice and the next flight had a layover of 8 extra hours. Me, my husband and my 8-year-old were already sick, and this further added to our problems. We paid extra for the seats: I was not even given our chosen seats which we paid for months before the trip. We were shoved into the available seats which were middle ones in the back (we had paid for front window, aisle, aisle). The seats were so uncomfortable and getting out of middle seats every so often (with a sick child) was a task. We had initially chosen British Airways because of the short layover, however, that went out of the window. Although unexpected things happen all the time and I understand customers have to adjust for the unplanned, however, how the airlines react and make the passengers comfortable during that time is the real test. We were not given any compensation for food or any arrangement to stay comfortable during that time. In fact, our paid seats were taken away as well.
Crew very helpful and friendly. Food is so so. Main meal is not always the best. Did have a choice of a snack part way which was either a cookie, corn snack, or similar. Second kind of meal was basically like a pizza pastry that really wasn’t a favorite but probably a European snack? Screens and selections of movies, tv and such were good. No WI-Fi unless you buy so no free texting or such on the long flight but I think that might be any overseas flight.
Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.
British airways keeps canceling our flights. I won’t be booking any future flights with them
Flight to Seattle was fine. We were delayed getting into our gate. The connection time was short and they make you go through security again which was slow.