Title: Cheap Flights to Sunnyside - Expedia.co.uk ![Usa, Washington State, Yakima Valley. Hahn Hill Vineyard, near Sunnyside is a popular source for quality Chenin Blanc.](https://images.trvl-media.com/place/55199/2d3b09a1-e9f5-4089-adce-770dac600b32.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/55199/2d3b09a1-e9f5-4089-adce-770dac600b32.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £422 Cheap Flights to Sunnyside [View £422 flight on Tue, 22 Sept 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LGW,to:PSC,departure:22/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:421.90&airProductToken=AQqcAQoyCMKCARIEMjE2NxjLsQEg8wMoiLyYAzDHwJgDOE9AAFgBagVOT0JBR3IIT0xYNUM1QjQKMgjBggESBDE0MDIY8wMg77kBKKbBmAMwr8OYAzhPQAFYAWoFTk9CQUdyCE9MWDVDNUI0CjIIwYIBEgQ1MDA2GO-5ASDPFCjIw5gDMO_EmAM4T0ABWAFqBU5PQkFHcghPTFg1QzVCNBIKCAIQARgCKgJCQRgBIgQIARABKAIoAygEMA0) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only [Sunnyside Travel Guide](https://expedia.co.uk/Sunnyside.dx55199)[Hotels in Sunnyside](https://expedia.co.uk/Sunnyside-Hotels.d55199.Travel-Guide-Hotels)[Sunnyside Car Hire](https://expedia.co.uk/Compare-Cheap-Car-Hire-In-Sunnyside.d55199.Car-Hire-Guide)[Sunnyside Holidays](https://expedia.co.uk/Sunnyside.d55199.Holidays-City-Breaks) ## Popular airlines to Sunnyside - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Sunnyside, Washington, United States of America,departure:03/03/2026TANYT&leg2=from:Sunnyside, Washington, United States of America,to:CMH,departure:10/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Sunnyside, Washington, United States of America,departure:03/03/2026TANYT&leg2=from:Sunnyside, Washington, United States of America,to:CMH,departure:10/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_HA.svg) Hawaiian Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Sunnyside, Washington, United States of America,departure:03/03/2026TANYT&leg2=from:Sunnyside, Washington, United States of America,to:CMH,departure:10/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_QR.svg) Qatar Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Sunnyside, Washington, United States of America,departure:03/03/2026TANYT&leg2=from:Sunnyside, Washington, United States of America,to:CMH,departure:10/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QR"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Cheap round-trip flights to Sunnyside Prices were available within the past 7 days and start at £422 for one-way flights and £237 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 30 Apr - Mon, 4 May RNO Reno YKM Yakima £237 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:RNO,to:YKM,departure:30/04/2026TANYT&leg2=from:YKM,to:RNO,departure:04/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:237.00&airProductToken=AQpgCi4IwaYBEgQyMDMxGLFzIJIBKP_jiwMw9uSLAzhYQABYAWoCU1ZyCFFIMkVBVUJOCi4IwaYBEgQyMTcyGJIBINhiKNDliwMwg-aLAzhYQAFYAWoCU1ZyCFFIMkVBVUJOCl8KLgjBpgESBDIwNDAY2GIgkgEo24qMAzCOi4wDOFhAAFgBagJTVnIIUUgyRUFVQk4KLQjBpgESAzI3MxiSASCxcyiyjIwDMKuNjAM4WEABWAFqAlNWcghRSDJFQVVCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, 20 Apr - Mon, 27 Apr LHR London PSC Pasco £610 Return found 9 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:PSC,departure:20/04/2026TANYT&leg2=from:PSC,to:LHR,departure:27/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:609.79&airProductToken=AQpsCjQI1YIBEgMyNjMY64kBIINpKL7tigMwkfKKAzhLQABYAWoIRUNPQkFTSUNyCEtKVkhLWEJRCjQI1YIBEgQxOTEzGINpIM8UKPjyigMwkfSKAzhLQAFYAWoIRUNPQkFTSUNyCEtKVkhLWEJRCmsKNAjVggESBDQ3MjEYzxQgg2kom7-LAzC0wIsDOEtAAFgBaghFQ09CQVNJQ3IIS0pWSEtYQlEKMwjVggESAjI3GINpIOuJASjnwIsDMIjFiwM4S0ABWAFqCEVDT0JBU0lDcghLSlZIS1hCURIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Mon, 20 Apr - Mon, 27 Apr LHR London PSC Pasco £616 Return found 9 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:PSC,departure:20/04/2026TANYT&leg2=from:PSC,to:LHR,departure:27/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:615.89&airProductToken=AQqaAQoyCMGGARIDODU5GOuJASCYzgEo6O6KAzC-8ooDOEtAAFgBagVCQVNJQ3IIS0pWSEtYQlEKMQjVggESAzU2NRiYzgEgsnEolveKAzD3-YoDOEtAAVgBagVCQVNJQ3IIS0pWSEtYQlEKMQjVggESBDUzOTEYsnEgzxQosPqKAzCy-4oDOEtAAVgBagVCQVNJQ3IIS0pWSEtYQlEKbAo0CNWCARIENTU3OBjPFCCycSi3v4sDMLzAiwM4S0AAWAFqCEVDT0JBU0lDcghLSlZIS1hCUQo0CNWCARIDOTMwGLJxIOuJASiWwosDMJbHiwM4S0ABWAFqCEVDT0JBU0lDcghLSlZIS1hCURIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Mon, 20 Apr - Mon, 27 Apr LHR London PSC Pasco £655 Return found 9 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:PSC,departure:20/04/2026TANYT&leg2=from:PSC,to:LHR,departure:27/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:654.79&airProductToken=AQpoCjIIwYIBEgMxOTUY64kBIO-5ASih64oDMLDwigM4QkAAWAFqBUJBU0lDcghPTFg4QzFCNAoyCMGCARIENTAwNhjvuQEgzxQonPKKAzDI84oDOEJAAVgBagVCQVNJQ3IIT0xYOEMxQjQKnAEKMgjBggESBDUwMDcYzxQg77kBKLC7iwMw2LyLAzhCQABYAWoFQkFTSUNyCE9MWDhDMUI0CjMIwYIBEgQxMDcwGO-5ASCjsQEo4b2LAzD8vosDOEJAAVgBagVCQVNJQ3IIT0xYOEMxQjQKMQjBggESAjIwGKOxASDriQEo_r-LAzCpxIsDOEJAAVgBagVCQVNJQ3IIT0xYOEMxQjQSCggCEAEYAioCQUEYASIECAEQASgCKAMoBDAL) ![Air France](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AF.gif) Mon, 20 Apr - Mon, 27 Apr LHR London PSC Pasco £672 Return found 9 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:PSC,departure:20/04/2026TANYT&leg2=from:PSC,to:LHR,departure:27/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:671.79&airProductToken=AQp_Cj4IwYwBEgQ5OTA0GOuJASCSASiA7IoDMOzwigM4VkAAWAFqBUxJR0hUcghWWTJFREJMQXoKCNamARIEOTkwNAo9CMGMARIEMjk4MhiSASDPFCj-9IoDMMX1igM4VkABWAFqBUxJR0hUcghWWTJFREJMQXoKCMSYARIEMjk4Mgp_Cj0IwYwBEgQyMzYwGM8UIJIBKPC-iwMwvL-LAzhWQABYAWoFTElHSFRyCFZZMkVEQkxBegoIxJgBEgQyMzYwCj4IwYwBEgQ5OTA1GJIBIOuJASjQwYsDMJ7GiwM4VkABWAFqBUxJR0hUcghWWTJFREJMQXoKCNamARIEOTkwNRIKCAEQARgBKgJBRhgBIgQIARABKAIoAygEMA0) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-uk-fr-de.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Holiday Sale Members save up to 40% on hotels and holiday homes. Plan this year’s big trip and save. [Book now](https://expedia.co.uk/cheap-deals?rfrr=FTG_SPRING_PROMO_) ## Frequently asked questions ### What is the name of Sunnyside's airport? ### What airport is best to fly into Sunnyside? ### How many airlines fly to Sunnyside? ### Which airlines fly to Sunnyside? ### How many nonstop flights are there to Sunnyside? ### Where are the most popular flights to Sunnyside departing from? ### How long is the flight to Sunnyside Airport? ### How to book the cheapest flight to Sunnyside? ### Do you have any tips for my flight to Sunnyside? > - It's easy — first, pack your passport, travel docs, cash and vital medications. Next, you'll need some entertainment to help pass the time. A juicy book and a tablet filled with your favourite movies are some terrific options. If you intend to catch a few z's, a neck pillow and some noise-cancelling headphones will also be useful. Finally, make room for a toothbrush and some deodorant to ensure you hop off the plane feeling fresh and raring to go. > > > Do not pack the following items in your hand luggage: > > > - Squeeze all your full-sized bottles of shampoo and hairspray in your checked baggage. Any liquids or gels in your carry-on bag larger than 3.4 ounces (100 millilitres) will be confiscated by authorities. Pointed or sharp objects, like your trusty pocket knife, and dangerous goods which are flammable or explosive, such as spray paint, flares and poisons, are also not allowed. > > > What to wear on a flight: > > > - Comfort should be your number one priority when deciding what to wear on your flight. Loose clothing is a wise choice, as are flat, slip-on shoes. > - You've probably heard about deep vein thrombosis (DVT), a blood clot condition caused by prolonged periods of sitting. To lower your risk on board, drink plenty of water, consider wearing compression socks and move your legs and feet often. ### How to get through airport security fast when flying to Sunnyside? > - Security personnel first need to verify that you have a valid passport and travel documents before anything else. Have them in your hand, ready for inspection. > - Your belt, jacket, keys and other contents of your pockets, like your earphones, will be required to go through the X-ray machine. Make the whole process easier by removing them as it gets closer to your turn. > - All your electronic devices, including your tablet and phone, must also be scanned. > - Can't travel without your favourite hand and nail cream? As long as the volume is no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-lock bag, it's OK to bring with you on board. > - The right choice of footwear can save you a few precious minutes. Hiking or heavy-style boots are often required to be removed and separately scanned. Slip-on sneakers are usually not. > - Airlines will not allow any sharp items or pocket knives in your carry-on baggage. If you must bring these kinds of items, pack them safely in your checked luggage. ## Book with confidence # Expedia flights to Sunnyside Searching for cheap flights to Sunnyside? No travel company presents more choices than Expedia if you're looking to compare flights to Sunnyside. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Washington. Expedia provides the cheapest flights to many destinations in Washington and you may find even greater savings if you combine your flight with a hotel stay in Sunnyside. Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast. Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Sunnyside for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your Sunnyside flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured that you have booked the best flight at the lowest price. ## Travel information | Destination airport | Yakima Air Terminal - McAllister Field | | ----------------------------- | -------------------------------------- | | Destination airport IATA code | YKM | | Destination city name | Yakima | | Return price | £237 | ## Trending flights to Sunnyside Prices were available within the past 7 days and start at £422 for one-way flights and £237 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Tue, 29 Sept - Mon, 12 Oct LHR London YKM Yakima £560 Return found 6 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:YKM,departure:29/09/2026TANYT&leg2=from:YKM,to:LHR,departure:12/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:559.99&airProductToken=AQpECiAIwaYBEgMxMDEY64kBIJIBKICNmQMw05GZAzhYQABYAQogCMGmARIEMjE3MhiSASDYYijSk5kDMIOUmQM4WEABWAEKRAogCMGmARIEMjAwMRjYYiCSASjVoZoDMIiimgM4WEAAWAEKIAjBpgESAzEwMBiSASDriQEonaWaAzDNqZoDOFhAAVgBEgoIARABGAEqAkFTGAEiBAgBEAEoBDAB) \*Available to Expedia members.