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$503+ Cheap flights from Birmingham (BHX) to Seattle (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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
BHX — SEA
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Birmingham to Seattle/Tacoma Intl are usually found in March or November, booked 79 days in advance, depart on a Tuesday or Monday and return on a Sunday

Cheap flight deals from Birmingham to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Birmingham (BHX) 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 septiembre 11, 2025.

Round-trip from

$794
(Mytrip)

One-way from

$503
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$831
From Birmingham to Seattle/Tacoma Intl
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One-way flight from Birmingham to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 15% potential increase in price ($170 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Birmingham to Seattle

Cheapest flights from Birmingham to Seattle
Explore the most affordable flight options available from Birmingham to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/268:40 amBHX - SEA
2 stops16h 20mMultiple Airlines
dom. 11/22:35 pmSEA - BHX
2 stops16h 55mMultiple Airlines
Deal found 9/11$794
This Delta deal was found by Cheapflights users on 9/11. 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.
mié. 12/246:15 amBHX - SEA
1 stop13h 35mDelta
mié. 1/77:20 amSEA - BHX
2 stops18h 10mDelta
Deal found 9/11$797
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/241:45 pmBHX - SEA
2 stops35h 07mUnited Airlines
mié. 1/712:35 pmSEA - BHX
3 stops40h 00mUnited Airlines
Deal found 9/11$836
This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/265:45 pmBHX - SEA
2 stops26h 25mLufthansa
dom. 11/23:10 pmSEA - BHX
1 stop17h 50mLufthansa
Deal found 9/11$886
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/266:00 amBHX - SEA
2 stops43h 25mUnited Airlines
dom. 11/21:20 pmSEA - BHX
2 stops39h 25mUnited Airlines
Deal found 9/11$935

Cheapflights Fare Finder

 
Customize your flight search to find flights from Birmingham 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 septiembre 11, 2025.
Use the filters below to find and compare flights from Birmingham to Seattle that are best for you.

Fly from

Birmingham

Fly to

Seattle

Route

Depart

Return

Price

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

dom. 10/26

8:40 am-6:00 pm

2 stops16h 20m

Seattle/Tacoma Intl

dom. 11/2

2:35 pm-3:30 pm

2 stops16h 55m

$794

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

mié. 12/24

6:15 am-11:50 am

1 stop13h 35m

Seattle/Tacoma Intl

mié. 1/7

7:20 am-9:30 am

2 stops18h 10m

$797

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

mié. 12/24

1:45 pm-4:52 pm

2 stops35h 07m

Seattle/Tacoma Intl

mié. 1/7

12:35 pm-12:35 pm

3 stops40h 00m

$836

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

dom. 10/26

5:45 pm-1:10 pm

2 stops26h 25m

Seattle/Tacoma Intl

dom. 11/2

3:10 pm-5:00 pm

1 stop17h 50m

$886

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

dom. 10/26

6:00 am-6:25 pm

2 stops43h 25m

Seattle/Tacoma Intl

dom. 11/2

1:20 pm-12:45 pm

2 stops39h 25m

$935

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

mar. 9/16

8:30 am-8:43 am

3 stops32h 13m

$503

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

jue. 9/25

2:45 pm-10:34 am

3 stops51h 49m

$557

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

sáb. 9/27

10:05 pm-8:29 pm

3 stops54h 24m

$557

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

vie. 9/26

5:55 am-11:59 pm

3 stops50h 04m

$601

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

mar. 9/16

8:10 am-4:40 pm

1 stop16h 30m

$623

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Birmingham to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Birmingham 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 Birmingham to Seattle

How far ahead should I book a flight from Birmingham to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Birmingham to Seattle. Price data was last updated on August 29, 2025.

The best time to book flights from Birmingham to Seattle is 78 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Birmingham to Seattle?

Currently, January is the cheapest month in which you can book a flight from Birmingham to Seattle (average of $238). Flying from Birmingham to Seattle in June is currently the most expensive (average of $388). 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.

How much does it cost to fly round-trip from Birmingham to Seattle?

Related info for your journey

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

  • How long is the flight from Birmingham to Seattle?

    Airlines like Delta and United Airlines fly from Birmingham to Seattle in about 13h 35m. The time it takes to get you to your destination can typically vary by up to 21h 32m. Airlines will cover a distance of 4695 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Birmingham 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 Birmingham to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Birmingham to Seattle (average of $238). Flying from Birmingham to Seattle in June is currently the most expensive (average of $388). 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?

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