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£458 Find cheap flights from Portsmouth to Riverside

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portsmouth to Riverside departing on 10/11. 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.
1 adult
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Good to know - Cheap tickets from Portsmouth to Riverside

Low season

January

High season

August

Cheapest flight

£458
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (21% more expensive on average)
Flight from Southampton to Los Angeles

When to book flights from Portsmouth to Riverside

Are your dates flexible? Find out the best times to travel from Portsmouth to Riverside based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs - booking Riverside flights

  • How long is the flight to Riverside?

    Flights from London10h 52m
  • What is the cheapest flight to Los Angeles?

    In the last 3 days, the cheapest flight deal to Los Angeles was found on the route from Southampton, at £413 one-way and £352 return. The most popular connection is from London to Los Angeles and KAYAK users have found return deals for as low as £389 in the last 3 days.

  • Which airlines fly to Los Angeles?

    British Airways, American Airlines, and Virgin Atlantic usually have the most frequent connections from United Kingdom to Los Angeles. See the amount of flights per week for popular airlines flying to Los Angeles.

  • How to fly to Riverside?

    You cannot fly directly to Riverside. KAYAK recommends you fly to Los Angeles (LAX) (59.3 miles from Riverside). From there you can hire a car or take a taxi.

  • What airports are near Riverside?

    The closest airport is San Bernardino Int (SBD) (11.49 mi). Other nearby airports are Ontario (ONT) (14.03 mi), Santa Ana J. Wayne/Orange Cnty (SNA) (35.01 mi), Victorville Southern California Logistics (VCV) (42.25 mi) or Long Beach Municipal (LGB) (45.93 mi). KAYAK recommends you fly to Los Angeles.

  • How far is Los Angeles Airport from central Los Angeles?

    Central Los Angeles is 9 miles away from Los Angeles Airport.

  • What is the name of Los Angeles’s airport?

    There is only 1 airport in Los Angeles, called Los Angeles Airport (LAX). It can also be referred to as Los Angeles or Los Angeles Intl.

  • How does KAYAK find such low prices on flights to Riverside?

    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 to Riverside.

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

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

  • What is the Hacker Fare option on flights to Riverside?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Riverside 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 to Riverside?

    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 to Riverside up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Riverside

  • There is no major airport in Riverside. It is instead served by Los Angeles Airport.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Riverside flight deals.

Top airlines flying from Portsmouth to Riverside

Need help choosing which airline to fly with from Portsmouth to Riverside? 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.
7.8
KLMOverall score based on 1352 reviews
7.2Entertainment
7.3Food
7.9Boarding
7.7Comfort
8.4Crew
Airline reviews

I tried to upgrade to premium economy anis seat online during the checkin process. The payment didn’t work due to a technical glitch on KLM’s website. I wasn’t able to change my seat unless I called Amsterdam. Since I was in Canada and there’s a time difference this wasn’t practical. So when I arrived early to Ottawa airport my seat wasn’t available and I could only get a middle seat in premium economy which isn’t great. These middle seats are priced at the same rate as an aisle seat which makes no sense.

8.0 ExcellentShereen, Oct 2024YOW - CDG
Read more KLM reviews

I tried to upgrade to premium economy anis seat online during the checkin process. The payment didn’t work due to a technical glitch on KLM’s website. I wasn’t able to change my seat unless I called Amsterdam. Since I was in Canada and there’s a time difference this wasn’t practical. So when I arrived early to Ottawa airport my seat wasn’t available and I could only get a middle seat in premium economy which isn’t great. These middle seats are priced at the same rate as an aisle seat which makes no sense.

Transavia flight, was booked as KLM but i couldnt select seat or access boarding pass with KLM at all. Crammed seating and very no frills experience all around. First and last time.

Seats were nice and comfy. Crew was polite and attentive. Business class is awesome and worth the money.

Flight left a few minutes late, but that's it. I wish the seats could be wider and recline more.

It’s chaotic at the bus stop outside of the airport because of the Uber meeting point. You need to be alert and look for the KLM bus which is not branded or labeled. Incorrect information was provided to go to gate 28, when in fact the bus was at gate 27. On the plus side the bus left early and arrived early to Ottawa.

Great flight because I upgraded to Premium Comfort. Made a huge difference in the experience.

The baggage service at Malpensa was the worst ever. We wanted for over an hour without any information, they broke my suitcase, and the services of the local luggage services company was below any usual services level of a KLM partner.

The flight was great, the only reason for middle scores on entertainment and food is that it was a short flight so not included (but snacks were served including alcoholic beverages free of charge). I would definitely recommend KLM.

Was trying to change a flight but told that Canadian and local klm systems do not interact so they could not access my booking. Overall I like klm a lot but if it was important to change flights I would be very frustrated.

Flight was delayed. Can happen. But the info on the website and app said that flight was cancelled which was not the case.

The seats of the Boeing 787-10 Dreamliner were ridiculously uncomfortable. I was on 10 flights during this vacation and this plane was super uncomfortable both times I was on one whereas all of the others were perfectly fine. Additionally, these planes do not have any air vents that passengers can control, the climate is entirely controlled by the crew which made for an extremely uncomfortable temperature for the duration. The flight attendants tried to make everyone happy with the temperature but several people you could tell were excessively warm and just wanted a bit of airflow.

Don't fly thru London Awful and huge U need 4 hrs to transfer cuz u have to tale buses to and fro from airplanes Bad business

Staff with low service level, forgetful. Temperature at 15 C and after asking twice to raise the temperature the crew did nothing.

They had about 20-25 people overbooked. Including me. Why is this?? I was put on a flight to NC an hour later with a 4 hour layover. I was supposed to be home at 1045am instead i was home at 7:30pm. An extra day to pay for dog care.

Boarding is not controlled as groups called was not enforced

The plane was clean. The crew were lovely. Food was good - but seat 1D is a poor location. - the crews cupboard is right near your feet and they visited them frequently swishing the curtain from the galley onto my feet everytime also creating a swish of cold air each time & then slamming the door.

Horrible food and uncomfortable plane. One toilet was out of service.

Business class is fantastic! Lie flat seats, great meals, privacy, and lots of nice amenities!

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.

The crew was great, the food was great, the seats were torture. I just could not get comfortable. Too narrow, too close to the seat in front. I felt guilty about reclining my seat and resisted but the people in front of me did not feel the same way. I thought both coming and going that the discomfort would conceivably be enough to prevent me from going abroad in the future. Will it? I'm not sure - but it will definitely be a factor in my choice of travel.

Book cheap flights from Portsmouth to Riverside

Recent return flight deals

10/11Sun
1 stopKLM
34h 15mSOU-LAX
18/11Mon
1 stopKLM
19h 05mLAX-SOU
£458
10/11Sun
2 stopsKLM
18h 44mSOU-LAX
18/11Mon
1 stopKLM
19h 05mLAX-SOU
£483
31/12Tue
2 stopsDelta
32h 10mSOU-LAX
8/1Wed
2 stopsDelta
33h 05mLAX-SOU
£486
12/1Sun
2 stopsDelta
31h 06mSOU-LAX
20/1Mon
1 stopDelta
19h 05mLAX-SOU
£492
8/12Sun
2 stopsVirgin Atlantic
30h 54mSOU-LAX
15/12Sun
2 stopsVirgin Atlantic
15h 39mLAX-SOU
£502
8/12Sun
1 stopVirgin Atlantic
34h 15mSOU-LAX
15/12Sun
2 stopsVirgin Atlantic
15h 39mLAX-SOU
£580
13/11Wed
2 stopsBritish Airways
19h 40mSOU-LAX
20/11Wed
2 stopsBritish Airways
17h 30mLAX-SOU
£690
13/11Wed
1 stopBritish Airways
17h 00mSOU-LAX
20/11Wed
2 stopsBritish Airways
17h 30mLAX-SOU
£734
8/12Sun
3 stops
36h 22mSOU-LAX
15/12Sun
3 stops
30h 15mLAX-SOU
£1,007
8/12Sun
2 stops
31h 10mSOU-LAX
15/12Sun
3 stops
27h 55mLAX-SOU
£1,045

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Recent one-way flight deals

8/12Sun
1 stopAer Lingus
17h 00mSOU-LAX
£537
3/3Mon
1 stopBritish Airways
17h 05mSOU-LAX
£1,259
3/3Mon
2 stopsBritish Airways
17h 45mSOU-LAX
£1,274
6/3Thu
1 stopBritish Airways
17h 00mSOU-LAX
£1,300
6/3Thu
2 stopsBritish Airways
17h 45mSOU-LAX
£1,315
23/12Mon
2 stopsBritish Airways
25h 40mSOU-LAX
£1,352
23/12Mon
1 stopBritish Airways
17h 05mSOU-LAX
£1,744
16/11Sat
1 stopBritish Airways
17h 00mSOU-LAX
£2,304
10/11Sun
2 stopsBritish Airways
16h 40mSOU-LAX
£2,321
24/2Mon
2 stopsBritish Airways
17h 45mSOU-LAX
£3,019

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Everything you need to know for your flight from Portsmouth to Riverside