Cheap Flights from Springfield (SPI) to Seattle (BFI)

Snag a cheap one-way flight or cheap return flight from Abraham Lincoln Capital Airport (SPI) to Boeing Field Airport (BFI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.

Flying in can help you save, as it's the cheapest month for flights between SPI and BFI. You'll typically find the lowest fares during off-peak months.

To find the cheapest airline that'll fly you from SPI to BFI, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.

Direct flights from Abraham Lincoln Capital Airport (SPI) to Boeing Field Airport (BFI) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."

You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.

*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.

To touch down at Boeing Field Airport (BFI) on time, opt for a flight that leaves from Abraham Lincoln Capital Airport (SPI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.*

*Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.

Holding off until just before your trip to book a ticket from SPI to BFI generally means paying more. While it's possible to find some last-minute offers, there's no guarantee. Keep your travel schedule open for a better chance of snagging a bargain.

You'll generally save money by booking a SPI to BFI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your preferred flights and accommodations, consider adding extras including activities, tours and car rentals.

In most instances, you can modify or cancel your SPI to BFI flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you'd like more details, visit our Customer Service portal.