HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$158+ Cheap flights from Bloomington, IL to Seattle (BMI - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
BMI — SEA
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bloomington to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Bloomington to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Bloomington (BMI) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated julio 29, 2025.

Round-trip from

$315
(American Airlines)

One-way from

$158
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$471
From Bloomington-Normal to Seattle/Tacoma Intl
Search Deals
One-way flight from Bloomington-Normal to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Bloomington to Seattle

Cheapest flights from Bloomington to Seattle
Explore the most affordable flight options available from Bloomington to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/202:49 pmBMI - SEA
1 stop7h 30mAmerican Airlines
mar. 8/265:25 amSEA - BMI
1 stop7h 56mAmerican Airlines
Deal found 7/29$315
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/313:47 pmBMI - SEA
1 stop10h 12mDelta
mar. 9/97:23 amSEA - BMI
2 stops12h 53mDelta
Deal found 7/29$635

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bloomington to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 29, 2025.
Use the filters below to find and compare flights from Bloomington to Seattle that are best for you.

Fly from

Bloomington

Fly to

Seattle

Route

Depart

Return

Price

BloomingtonSeattle

BMI - SEA

BMISEA

Bloomington-Normal

mié. 8/20

2:49 pm-8:19 pm

1 stop7h 30m

Seattle/Tacoma Intl

mar. 8/26

5:25 am-3:21 pm

1 stop7h 56m

$315

BloomingtonSeattle

BMI - SEA

BMISEA

Bloomington-Normal

dom. 8/31

3:47 pm-11:59 pm

1 stop10h 12m

Seattle/Tacoma Intl

mar. 9/9

7:23 am-10:16 pm

2 stops12h 53m

$635

BloomingtonSeattle

BMI - SEA

BMISEA

Bloomington-Normal

mar. 8/19

6:00 am-12:35 pm

1 stop8h 35m

$158

BloomingtonSeattle

BMI - SEA

BMISEA

Bloomington-Normal

mié. 8/6

6:00 am-2:59 pm

2 stops10h 59m

$609

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Bloomington to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Bloomington with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bloomington to Seattle

What is the cheapest month to book a flight from Bloomington, Illinois to Seattle?

Currently, January is the cheapest month in which you can book a flight from Bloomington, Illinois to Seattle (average of $238). Flying from Bloomington, Illinois to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BMI to SEA?

Find hourly flight availability from Bloomington to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 29, 2025.

One of the essential ways to save on airfare from Bloomington, Illinois to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 31% on airfare.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated julio 29, 2025.
Get a feel of what it's like to fly with Delta and American Airlines from Bloomington to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Bloomington to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Bloomington, Illinois to Seattle round-trip?

    Cheapflights users have booked flights from Bloomington, Illinois to Seattle round-trip from $315. Another airline that can offer you cheap pricing is Delta. American Airlines is 31% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Bloomington to Seattle that include hotel bookings?

    Yes. In addition to deals on Bloomington to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bloomington to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bloomington to Seattle.

  • Can I find deals for business class flights from Bloomington to Seattle?

    Yes. Cheapflights offers flight deals from Bloomington to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bloomington, Illinois to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Bloomington, Illinois to Seattle (average of $238). Flying from Bloomington, Illinois to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bloomington to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Seattle flights
O'Hare Intl to Portland flights
St. Louis to Seattle flights
Midway to Seattle flights
Midway to Portland flights
O'Hare Intl to Spokane flights
St. Louis to Portland flights
Peoria to Seattle flights
O'Hare Intl to Pasco flights
Midway to Pasco flights
Moline to Seattle flights
Quincy to Seattle flights
Moline to Portland flights
Midway to Spokane flights
Peoria to Portland flights
St. Louis to Spokane flights
O'Hare Intl to Wenatchee flights
St. Louis to Pasco flights
O'Hare Intl to Walla Walla flights
Evansville to Seattle flights
O'Hare Intl to Bellingham flights
Decatur to Portland flights
O'Hare Intl to Pullman flights
Springfield to Seattle flights
Peoria to Spokane flights
Moline to Spokane flights
Bloomington to Spokane flights
Springfield to Portland flights
Bloomington to Portland flights
Champaign to Seattle flights
Peoria to Pasco flights
O'Hare Intl to Yakima flights
Decatur to Seattle flights
Dubuque to Portland flights
St. Louis to Pullman flights
Champaign to Portland flights
Evansville to Spokane flights
Evansville to Portland flights
Dubuque to Seattle flights
St. Louis to Yakima flights
Paducah to Seattle flights
Springfield to Bellingham flights
Springfield to Spokane flights
Moline to Walla Walla flights
Moline to Pasco flights

Top airline flying from Bloomington to Seattle

Discover the top airline that operate flights from Bloomington to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$314Average$467FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.