Title: Cheap Flights to Mountlake Terrace - Expedia.co.uk ![Lake Ballinger Mountlake Terrace Edmonds Washington Olympic Mountains Background Aerial View](https://images.trvl-media.com/place/180849/04f5a1f3-5bbc-4486-a775-5ff5c1dab01c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/180849/04f5a1f3-5bbc-4486-a775-5ff5c1dab01c.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £351 Cheap Flights to Mountlake Terrace [View £351 flight on Sun, 19 Apr 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LHR,to:SEA,departure:19/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:350.29&airProductToken=AQpkCi8I16YBEgExGOuJASCYFij24YoDMIjmigM4RUAAWAFqBUJBU0lDcghMUzdKNEtCSwoxCNemARIEMTU1MhiYFiCSASiN8IoDMP_wigM4RUABWAFqBUJBU0lDcghMUzdKNEtCSxIKCAEQARgBKgJXUxgBIgQIARABKAIoAygEMAE) [Mountlake Terrace Travel Guide](https://expedia.co.uk/Mountlake-Terrace.dx180849)[Hotels in Mountlake Terrace](https://expedia.co.uk/Mountlake-Terrace-Hotels.d180849.Travel-Guide-Hotels)[Mountlake Terrace Car Hire](https://expedia.co.uk/Compare-Cheap-Car-Hire-In-Mountlake-Terrace.d180849.Car-Hire-Guide)[Mountlake Terrace Holidays](https://expedia.co.uk/Mountlake-Terrace.d180849.Holidays-City-Breaks) ## Popular airlines to Mountlake Terrace - ![](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:Mountlake Terrace, Washington, United States of America,departure:19/04/2026TANYT&leg2=from:Mountlake Terrace, Washington, United States of America,to:CMH,departure:26/04/2026TANYT&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:Mountlake Terrace, Washington, United States of America,departure:19/04/2026TANYT&leg2=from:Mountlake Terrace, Washington, United States of America,to:CMH,departure:26/04/2026TANYT&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_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Mountlake Terrace, Washington, United States of America,departure:19/04/2026TANYT&leg2=from:Mountlake Terrace, Washington, United States of America,to:CMH,departure:26/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Mountlake Terrace, Washington, United States of America,departure:19/04/2026TANYT&leg2=from:Mountlake Terrace, Washington, United States of America,to:CMH,departure:26/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Mountlake Terrace, Washington, United States of America,departure:19/04/2026TANYT&leg2=from:Mountlake Terrace, Washington, United States of America,to:CMH,departure:26/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Mountlake Terrace, Washington, United States of America,departure:19/04/2026TANYT&leg2=from:Mountlake Terrace, Washington, United States of America,to:CMH,departure:26/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Mountlake Terrace, Washington, United States of America,departure:19/04/2026TANYT&leg2=from:Mountlake Terrace, Washington, United States of America,to:CMH,departure:26/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](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 Mountlake Terrace Prices were available within the past 7 days and start at £351 for one-way flights and £518 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 ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Wed, 15 Apr - Wed, 29 Apr LGW London SEA Seattle £518 Return found 5 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LGW,to:SEA,departure:15/04/2026TANYT&leg2=from:SEA,to:LGW,departure:29/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:517.20&airProductToken=AQplCjEIxpIBEgM0NzMYy7EBIIopKNC1igMwk7eKAzhYQABYAWoFTElHSFRyCFhKMk1HQkxUCjAIxpIBEgM2ODMYiikgkgEogbiKAzDcu4oDOFhAAVgBagVMSUdIVHIIWEoyTUdCTFQKZQowCMaSARIDNjgyGJIBIIopKLjYiwMw9duLAzhYQABYAWoFTElHSFRyCFhKMk1HQkxUCjEIxpIBEgM0NzIYiikgy7EBKLbciwMw9N2LAzhYQAFYAWoFTElHSFRyCFhKMk1HQkxUEgoIARABGAEqAkZJGAEiBAgBEAEoAigDKAQwAQ) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Tue, 24 Nov - Mon, 30 Nov LHR London SEA Seattle £543 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SEA,departure:24/11/2026TANYT&leg2=from:SEA,to:LHR,departure:30/11/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:542.39&airProductToken=AQpACj4IyYQBEgQzNTA3GOuJASCSASi_gp4DMJeHngM4T0AAWAFqBUJBU0lDcghPSFg2RTFCNHoKCMKCARIEMzUwNwpACj4IyYQBEgQzNTA2GJIBIOuJASjKy54DMITQngM4T0AAWAFqBUJBU0lDcghPSFg2RTFCNHoKCMKCARIEMzUwNhIKCAIQARgCKgJJQhgBIgQIARABKAIoAygEMA0) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, 2 Dec - Mon, 7 Dec LHR London SEA Seattle £543 Return found 3 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SEA,departure:02/12/2026TANYT&leg2=from:SEA,to:LHR,departure:07/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:542.59&airProductToken=AQpACj4IwYIBEgQ2OTA4GOuJASCSASi_3J4DMJfhngM4T0AAWAFqBUJBU0lDcghPSFg2RTFCNHoKCMKCARIENjkwOApmCjEIwYIBEgM3MDcYkgEgo7EBKLqWnwMwpJifAzhCQABYAWoFQkFTSUNyCE9IWDZFMUI0CjEIwYIBEgIyMBijsQEg64kBKN2YnwMw75yfAzhCQAFYAWoFQkFTSUNyCE9IWDZFMUI0EgoIAhABGAIqAkFBGAEiBAgBEAEoAigDKAQwCw) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Wed, 2 Dec - Mon, 7 Dec LHR London SEA Seattle £543 Return found 3 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:SEA,departure:02/12/2026TANYT&leg2=from:SEA,to:LHR,departure:07/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:542.59&airProductToken=AQoyCjAIwoIBEgI0ORjriQEgkgEov9yeAzCX4Z4DOE9AAFgBagVOT0JBR3IIT0hYNkUxQjQKfwo9CMKCARIENDM4MhiSASCuHCjqlp8DMOaYnwM4T0AAWAFqBU5PQkFHcghPSFg2RTFCNHoKCMGCARIENDM4Mgo-CMKCARIEMTU0MxiuHCDriQEospmfAzCDnZ8DOE9AAVgBagVOT0JBR3IIT0hYNkUxQjR6CgjBggESBDE1NDMSCggCEAEYAioCQkEYASIECAEQASgCKAMoBDAN) ![Condor](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DE.gif) Tue, 13 Oct - Thu, 22 Oct LGW London SEA Seattle £546 Return found 6 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LGW,to:SEA,departure:13/10/2026TANYT&leg2=from:SEA,to:LGW,departure:22/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:545.63&airProductToken=AQpzCj4IxIoBEgQ0MTIyGMuxASClBCiwp5oDMIqomgM4WUAAWAFqC0VDT05PTVlaRVJPcgJMTXoKCLKYARIENDEyMgoxCMSKARIEMjAzMhilBCCSASjfqJoDMNCtmgM4WUAAWAFqC0VDT05PTVlaRVJPcgJMTQpzCjEIxIoBEgQyMDMzGJIBIKUEKIGUmwMw3pibAzhZQABYAWoLRUNPTk9NWVpFUk9yAkxNCj4IxIoBEgQ0MzE3GKUEIMuxASiPm5sDMO6bmwM4WUAAWAFqC0VDT05PTVlaRVJPcgJMTXoKCNqiARIENDMxNxIKCAsQARgIKgJERRgBIgQIARABKAIwAw) ## Find the cheapest month to fly from Columbus (CMH) to Seattle (SEA) ### April is typically the cheapest month to fly From £126 - £230 per traveller. ## Frequently asked questions ### What is the name of Mountlake Terrace's airport? ### How far is SEA from central Mountlake Terrace? ### What airport is best to fly into Mountlake Terrace? ### How many airlines fly to Mountlake Terrace? ### Which airlines fly to Mountlake Terrace? ### How many nonstop flights are there to Mountlake Terrace? ### Where are the most popular flights to Mountlake Terrace departing from? ### How long is the flight to Mountlake Terrace Airport? ### How to book the cheapest flight to Mountlake Terrace? ### Do you have any tips for my flight to Mountlake Terrace? > - A plane ride can be a comfortable experience if you've got all the right gear. Firstly, you'll want some toiletry items, such as deodorant, toothpaste and a toothbrush, a fresh change of clothes and something to read. Secondly, make room in your bag for your mobile phone, a charger, any vital medications and maybe a cosy neck pillow too. Lastly, and most importantly, don't forget to bring your passport, travel documents and some cash. > > > Do not pack the following items in your hand luggage: > > > - Leave all your full-sized bottles of shampoo and hair gel in your checked luggage. Any gels or liquids in your carry-on suitcase larger than 3.4 ounces (100 millilitres) will be confiscated by authorities. Pointed or sharp objects, like your Swiss Army knife, and products which are explosive or flammable, such as flares, bleaching agents and fireworks, are also banned. > > > What to wear on a flight: > > > - The aisles of an aircraft aren't the place for a fashion parade. Dress in comfortable layers and choose shoes that are roomy, flat and easy to take on and off. > - Deep vein thrombosis (DVT), a blood clotting condition caused by prolonged inactivity, can be a risk on long-haul flights. Try to walk around the cabin and stretch your legs or do some simple exercises in your seat to promote better circulation. ### How to get through airport security fast when flying to Mountlake Terrace? > - First things first. Your passport and travel documents will need to be presented to security personnel. Have them close by so you don't hold up the line. > - After that, both you and your carry-on luggage will be X-rayed. To speed things up, take off anything that might set the alarms off. Personal belongings such as your jacket, belt and earphones will be required to go through the machine. > - For just a few moments, you'll have to unplug from technology. Your tablet, phone and any other electronics will also need to go through the scanner. > - Travelling with a new hand cream? As long as it's in a container no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-close bag, you can keep it with you in your carry-on baggage. > - There's a chance you'll be required to remove your shoes for scanning, so wearing slip-on shoes is always a smart idea. > - Avoid taking prohibited items in your carry-on bag. If you have any sharp objects like a pocket knife or tools, pack them in your checked baggage. They won't be allowed on board. ## Book with confidence # Expedia flights to Mountlake Terrace Searching for cheap flights to Mountlake Terrace? No travel company presents more choices than Expedia if you're looking to compare flights to Mountlake Terrace. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Seattle. Expedia provides the cheapest flights to many destinations in Seattle and you may find even greater savings if you combine your flight with a hotel stay in Mountlake Terrace. 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 Mountlake Terrace 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 Mountlake Terrace 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 | Seattle - Tacoma Intl. | | ----------------------------- | ---------------------- | | Destination airport IATA code | SEA | | Destination city name | Seattle | | Return price | £517 | ## Trending flights to Mountlake Terrace Prices were available within the past 7 days and start at £351 for one-way flights and £518 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 ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Wed, 15 Apr - Wed, 29 Apr LGW London SEA Seattle £518 Return found 5 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LGW,to:SEA,departure:15/04/2026TANYT&leg2=from:SEA,to:LGW,departure:29/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:517.20&airProductToken=AQplCjEIxpIBEgM0NzMYy7EBIIopKNC1igMwk7eKAzhYQABYAWoFTElHSFRyCFhKMk1HQkxUCjAIxpIBEgM2ODMYiikgkgEogbiKAzDcu4oDOFhAAVgBagVMSUdIVHIIWEoyTUdCTFQKZQowCMaSARIDNjgyGJIBIIopKLjYiwMw9duLAzhYQABYAWoFTElHSFRyCFhKMk1HQkxUCjEIxpIBEgM0NzIYiikgy7EBKLbciwMw9N2LAzhYQAFYAWoFTElHSFRyCFhKMk1HQkxUEgoIARABGAEqAkZJGAEiBAgBEAEoAigDKAQwAQ) \*Available to Expedia members.