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$149+ Cheap flights from Brownsville to Seattle (BRO - 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — SEA
Jul 14 — Jul 211
Mon 7/14
Mon 7/21
1 adult, Economy
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Cheap flight deals from Brownsville to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Brownsville (BRO) 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 July 9, 2025.

Round-trip from

$428
(United Airlines)

One-way from

$149
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$509
From Brownsville South Padre Is. Intl to Seattle/Tacoma Intl
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One-way flight from Brownsville South Padre Is. Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 12% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Brownsville to Seattle

Cheapest flights from Brownsville to Seattle
Explore the most affordable flight options available from Brownsville to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2025.

This American Airlines deal was found by Cheapflights users on 7/8. 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.
Fri 7/187:26 pmBRO - SEA
1 stop7h 17mAmerican Airlines
Tue 7/2211:32 pmSEA - BRO
1 stop8h 25mAmerican Airlines
Deal found 7/8$414
This United Airlines deal was found by Cheapflights users on 7/7. 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.
Tue 7/225:19 pmBRO - SEA
1 stop7h 18mUnited Airlines
Sat 7/265:00 amSEA - BRO
1 stop9h 05mUnited Airlines
Deal found 7/7$428
This Alaska Airlines deal was found by Cheapflights users on 7/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/83:08 pmBRO - SEA
1 stop7h 27mAlaska Airlines
Wed 7/1612:25 amSEA - BRO
1 stop7h 32mAlaska Airlines
Deal found 7/7$658

Cheapflights Fare Finder

Customize your flight search to find flights from Brownsville 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 July 9, 2025.
Use the filters below to find and compare flights from Brownsville to Seattle that are best for you.

Fly from

Brownsville

Fly to

Seattle

Route

Depart

Return

Price

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Tue 7/22

5:19 pm-10:37 pm

1 stop7h 18m

Seattle/Tacoma Intl

Sat 7/26

5:00 am-4:05 pm

1 stop9h 05m

$428

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Sat 7/26

7:26 pm-12:43 am

1 stop7h 17m

Seattle/Tacoma Intl

Sat 8/2

3:38 pm-12:15 am

1 stop6h 37m

$511

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Sat 7/26

5:26 am-11:27 am

1 stop8h 01m

Seattle/Tacoma Intl

Sat 8/2

12:25 am-10:03 am

1 stop7h 38m

$792

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Tue 8/12

3:06 pm-9:36 pm

1 stop8h 30m

$149

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Tue 8/12

5:10 am-1:46 pm

2 stops10h 36m

$154

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Mon 10/20

5:38 am-1:31 pm

1 stop9h 53m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Best time to book a flight from Brownsville to Seattle

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

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

Currently, January is the cheapest month in which you can book a flight from Brownsville to Seattle (average of $238). Flying from Brownsville 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.

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

Find hourly flight availability from Brownsville 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 July 9, 2025.

A simple way to save on the total cost of your ticket is to fly from Brownsville to Seattle at noon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the morning.

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 July 9, 2025.
Get a feel of what it's like to fly with Alaska Airlines, United Airlines, and American Airlines from Brownsville 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,842 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Brownsville 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 Brownsville to Seattle round-trip?

    United Airlines, at $428, was found to be the cheapest airline from Brownsville to Seattle.Alternate airlines to your destination round-trip include American Airlines and Alaska Airlines. United Airlines is currently priced 4% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Brownsville to Seattle one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $149. United Airlines flights start at $154 while deals on Alaska Airlines start at $259 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Brownsville to Seattle (average of $238). Flying from Brownsville 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 Brownsville?

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

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Alternative routes for Brownsville to Seattle

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Top 3 airlines flying from Brownsville to Seattle

Discover the top 3 airlines that operate flights from Brownsville 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 July 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$249Average$328FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$301Average$483FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$308Average$625FlexibilityNo cancel feeOn-time69%

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