Find cheap flights from Seattle to Belleville - Compare and Save

When flying out of Seattle you’ll be using Seattle/Tacoma Intl. Belleville does not have its own airport so you’ll be flying into nearby Lambert-St Louis airport, which is 26.3 mi away.

Direct flights cover the 1,704 miles separating Seattle and Belleville in about 3h 50m.

9 direct flights run between Seattle and Belleville on a daily basis. On average, there are about 67 departures each week.

Consider leaving on a Monday and avoid Saturdays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Tuesdays and the most expensive ones on Thursdays.

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 from Seattle to Belleville.

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

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 Belleville with an airline and back to Seattle with another airline.

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

In the last 5 days, the cheapest one-way ticket between Seattle and Belleville found on KAYAK was with United Airlines for $74. Delta offered a round-trip connection from $113 and Southwest from $191.