Title: Cheap Flights to Waterloo - Expedia.co.uk ![Country road through farmland, Midwest](https://images.trvl-media.com/place/171570/5d3a8671-3329-4f68-85d4-0daa425a6036.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/171570/5d3a8671-3329-4f68-85d4-0daa425a6036.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £119 Cheap Flights to Waterloo [View £119 flight on Wed, 29 Apr 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LAX,to:STL,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:118.50&airProductToken=AQpfCi4IwaYBEgM3NDgYi7gBIJIBKMrViwMw-taLAzhYQABYAWoCU1ZyCE9IMk9YVUJOCi0IwaYBEgM0NzIYkgEg8lwo-deLAzDr2YsDOFhAAVgBagJTVnIIT0gyT1hVQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) - [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 [Hotels in Waterloo](https://expedia.co.uk/Waterloo-Hotels.d171570.Travel-Guide-Hotels)[Waterloo Car Hire](https://expedia.co.uk/Compare-Cheap-Car-Hire-In-Waterloo.d171570.Car-Hire-Guide)[Waterloo Holidays](https://expedia.co.uk/Waterloo.d171570.Holidays-City-Breaks) ## Popular airlines to Waterloo - ![](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:Waterloo, Illinois, United States of America,departure:24/02/2026TANYT&leg2=from:Waterloo, Illinois, United States of America,to:CMH,departure:03/03/2026TANYT&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_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Waterloo, Illinois, United States of America,departure:24/02/2026TANYT&leg2=from:Waterloo, Illinois, United States of America,to:CMH,departure:03/03/2026TANYT&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:Waterloo, Illinois, United States of America,departure:24/02/2026TANYT&leg2=from:Waterloo, Illinois, United States of America,to:CMH,departure:03/03/2026TANYT&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:Waterloo, Illinois, United States of America,departure:24/02/2026TANYT&leg2=from:Waterloo, Illinois, United States of America,to:CMH,departure:03/03/2026TANYT&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:Waterloo, Illinois, United States of America,departure:24/02/2026TANYT&leg2=from:Waterloo, Illinois, United States of America,to:CMH,departure:03/03/2026TANYT&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_AS.svg) Alaska Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Waterloo, Illinois, United States of America,departure:24/02/2026TANYT&leg2=from:Waterloo, Illinois, United States of America,to:CMH,departure:03/03/2026TANYT&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_AC.svg) Air Canada [](https://www.expedia.co.uk/Flights-Search?leg1=from:CMH,to:Waterloo, Illinois, United States of America,departure:24/02/2026TANYT&leg2=from:Waterloo, Illinois, United States of America,to:CMH,departure:03/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![](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 Waterloo Prices were available within the past 7 days and start at £119 for one-way flights and £228 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 ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sat, 2 May - Sat, 16 May BOS Boston STL St. Louis £228 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:STL,departure:02/05/2026TANYT&leg2=from:STL,to:BOS,departure:16/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:227.30&airProductToken=AQpFCiEIwYIBEgQyOTc2GMGTASCuHCjW9YsDMI33iwM4T0AAWAEKIAjBggESBDQzNDEYrhwg8lwojPmLAzDl-YsDOE9AAVgBCkUKIAjBggESBDI0NDQY8lwgrhwolZGNAzDwkY0DOE9AAFgBCiEIwYIBEgQyODE1GK4cIMGTASiDlI0DMJ2VjQM4T0ABWAESCggBEAEYASoCQUEYASIECAEQASgIKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sat, 2 May - Sat, 16 May BOS Boston STL St. Louis £245 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:STL,departure:02/05/2026TANYT&leg2=from:STL,to:BOS,departure:16/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:244.50&airProductToken=AQpFCiEI1YIBEgQxODY5GMGTASCuHCjY8osDMIz0iwM4R0AAWAEKIAjVggESBDUyMTQYrhwg8lwos_eLAzCT-IsDOEdAAVgBCkUKIAjVggESBDU3NjQY8lwgrhwo_5WNAzDblo0DOExAAFgBCiEI1YIBEgQxNzc5GK4cIMGTASj2l40DMIuZjQM4TEABWAESCggBEAEYASoCVUEYASIECAEQASgEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 12 Mar - Wed, 18 Mar LAX Los Angeles STL St. Louis £258 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LAX,to:STL,departure:12/03/2026TANYT&leg2=from:STL,to:LAX,departure:18/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:257.40&airProductToken=AQpgCi8IwaYBEgQxMzAxGIu4ASCSASiPuocDMMC7hwM4WEAAWAFqAlNWcghPSDJPQVVCTgotCMGmARIDNjE1GJIBIPJcKIO8hwMw672HAzhYQAFYAWoCU1ZyCE9IMk9BVUJOCl8KLQjBpgESAzQ3MxjyXCCSASiw-YcDMMP7hwM4WEAAWAFqAlNWcghRSDVPQUpCTgouCMGmARIDNjk2GJIBIIu4ASix_IcDMNb9hwM4WEABWAFqAlNWcghRSDVPQUpCThIKCAEQARgBKgJBUxgBIgQIARABKAIoAygEMAE) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sat, 2 May - Sat, 16 May BOS Boston STL St. Louis £273 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:BOS,to:STL,departure:02/05/2026TANYT&leg2=from:STL,to:BOS,departure:16/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:272.40&airProductToken=AQpHCiIIxJgBEgQyMjIyGMGTASDjtAEogvaLAzCI94sDOEVAAFgBCiEIxJgBEgQyODIyGOO0ASDyXCiw94sDMJb4iwM4RUABWAEKRwohCMSYARIEMjgyMhjyXCDjtAEoqJaNAzCFl40DOEVAAFgBCiIIxJgBEgQxMTg3GOO0ASDBkwEoupeNAzCxmI0DOEVAAVgBEgoIARABGAEqAkRMGAEiBAgBEAEoBDAB) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Sun, 1 Mar - Sun, 8 Mar CPH Copenhagen STL St. Louis £421 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:CPH,to:STL,departure:01/03/2026TANYT&leg2=from:STL,to:CPH,departure:08/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:420.54&airProductToken=AQpkCjAIzJABEgM4MzMY4jsgpQQonreGAzD4t4YDOEtAAFgBagVFTFQwMHIIS1hIUEFYQlEKMAjMkAESAzQ0OBilBCDyXCiJuYYDMOu9hgM4S0AAWAFqBUVMVDAwcghLWEhQQVhCUQqwAQo9CMyQARIEODkyMxjyXCCuHCjmi4cDMMOMhwM4S0AAWAFqBUVMVDAwcghLWEhQQVhCUXoKCNWCARIENDQxMwo8CMyQARIEOTI2ORiuHCCMFSjAjocDMMOShwM4S0AAWAFqBUVMVDAwcghLWEhQQVhCUXoJCNWCARIDOTUzCjEIzJABEgQyNDQwGIwVIOI7KI6ThwMw7ZOHAzhLQABYAWoFRUxUMDByCEtYSFBBWEJREgoIARABGAEqAkxIGAEiBAgBEAEoAigDKAQwCw) ## Find the cheapest month to fly from Columbus (CMH) to St. Louis (STL) ### October is typically the cheapest month to fly From £104 - £341 per traveller. ## Expedia flights to Waterloo Searching for cheap flights to Waterloo? No travel company presents more choices than Expedia if you're looking to compare flights to Waterloo. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Illinois. Expedia provides the cheapest flights to many destinations in Illinois and you may find even greater savings if you combine your flight with a hotel stay in Waterloo. 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 Waterloo 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 Waterloo 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. ## Frequently asked questions ### What is the name of Waterloo's airport? ### How far is STL from central Waterloo? ### What airport is best to fly into Waterloo? ### How many airlines fly to Waterloo? ### Which airlines fly to Waterloo? ### How many nonstop flights are there to Waterloo? ### Where are the most popular flights to Waterloo departing from? ### How long is the flight to Waterloo Airport? ### How to book the cheapest flight to Waterloo? ### Do you have any tips for my flight to Waterloo? > - The secret to having an awesome flight experience is to be prepared. Start with the essentials: passport, official ID, cash and medications. Next, bring on board items that'll help keep you entertained, like some electronic devices or a good book. It's also wise to bring your chargers, a quality neck pillow and a pair of noise-cancelling headphones. Last but not least, be sure to toss in toiletries like a toothbrush, lip balm and a fresh change of clothes. > > > Do not pack the following items in your hand luggage: > > > - While the list of prohibited items differs between air carriers, the general guide to follow is nothing flammable, sharp or explosive. This includes screwdrivers, blades, spray paint and fireworks. Sporting equipment like baseball bats, and items that could injure passengers, such as pepper spray and firearms, can't come on board with you either. > > > What to wear on a flight: > > > - Comfort should be your main priority when deciding what to wear on board. Loose clothing is a sensible choice, as are enclosed shoes like sneakers. > - Deep vein thrombosis (DVT), a blood clot condition caused by lengthy periods of inactivity, can be a risk on long-haul flights. Make a point of walking around the cabin or do some simple exercises in your seat to promote better circulation. ### How to get through airport security fast when flying to Waterloo? > - Have your boarding pass and ID at hand. They're the first things you'll be asked to show at airport security. > - Next up, both you and your hand luggage must be X-rayed. To make the process quick and painless, take off anything that might trigger the alarms. Items such as your belt, coat and earphones need to go through the machine. > - Your electronic devices like laptops and phones will also need to go on a tray to be scanned. Don't worry, you'll be back online in no time. > - Any gels or liquids, such as shampoo or hand cream, that you want to bring on board need to be in containers no larger than 3.4 ounces (100 millilitres). They must also all fit inside a quart-size (one litre), clear zip-close bag. > - Slip-on shoes are a practical footwear choice as you're less likely to be asked to remove them when passing through security. Safety boots and other heavy shoes are often subjected to additional screening. > - Take all prohibited items out of your carry-on bag. If you have any sharp or pointed objects, pack them in your checked luggage. They won't be allowed on board and will be confiscated. __Flights to Waterloo information__ | Destination airport | Lambert-St. Louis Intl. | | ----------------------------- | ----------------------- | | Destination airport IATA code | STL | | Destination city name | St. Louis | | Return price | £227 | ## Trending flights to Waterloo Prices were available within the past 7 days and start at £119 for one-way flights and £228 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 ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Wed, 18 Mar - Wed, 25 Mar LHR London STL St. Louis £547 Return found 11 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LHR,to:STL,departure:18/03/2026TANYT&leg2=from:STL,to:LHR,departure:25/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:546.09&airProductToken=AQqDAQpACMKCARIEMTU5OBjriQEg4poBKKH5hwMwwv2HAzhPQABYAWoFTk9CQUdyCU9MWDhDMUI0UHoKCMGCARIEMTU5OAo_CMKCARIENjg0MxjimgEg8lwoof6HAzCe_4cDOE9AAVgBagVOT0JBR3IJT0xYOEMxQjRQegoIwYIBEgQ2ODQzCoMBCj8IwoIBEgQ2NzE0GPJcIOKaASiay4gDMI7MiAM4T0AAWAFqBU5PQkFHcglPTFg4QzFCNFB6CgjBggESBDY3MTQKQAjCggESBDE1OTUY4poBIOuJASi4zYgDMJjRiAM4T0ABWAFqBU5PQkFHcglPTFg4QzFCNFB6CgjBggESBDE1OTUSCggBEAEYASoCQkEYASIECAEQASgCKAMwDQ) \*Available to Expedia members.