$459+ Cheap flights from Brownsville to Seattle (BRO - SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
BRO — SEA
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Brownsville 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 Brownsville to Seattle
Cheapest
Best
Last-minute
Cheapest flights from Brownsville to SeattleExplore 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 September 15, 2026.
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 September 15, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/254:37 pm -
1 stop8h 23m
Tue 9/2912:00 pm -
1 stop7h 50m
Deal found 9/10![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 9/13. 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 9/2912:05 pm -
1 stop8h 58m
Sat 10/311:59 pm -
1 stop9h 24m
Deal found 9/13![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/217:15 am -
2 stops12h 22m
Sat 10/2412:00 pm -
1 stop7h 50m
Deal found 9/10![United Airlines logo]()
$494
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 9/264:17 pm -
1 stop7h 35m
Wed 9/305:30 am -
1 stop7h 56m
Deal found 9/13![American Airlines logo]()
$520
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 12/228:03 pm -
1 stop6h 55m
Sun 12/275:10 am -
1 stop7h 50m
Deal found 9/10![American Airlines logo]()
$539
Best flights from Brownsville to SeattleDiscover carefully curated flight deals from Brownsville to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Brownsville to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/254:37 pm -
1 stop8h 23m
Tue 9/2912:00 pm -
1 stop7h 50m
Deal found 9/10![United Airlines logo]()
$459
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Sat 10/34:17 pm -
1 stop7h 35m
Fri 10/92:26 pm -
1 stop6h 31m
Deal found 9/12![American Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 9/13. 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 9/2912:05 pm -
2 stops10h 56m
Sat 10/311:59 pm -
1 stop9h 24m
Deal found 9/13![United Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/219:10 am -
1 stop7h 43m
Sat 10/2411:59 pm -
1 stop9h 20m
Deal found 9/10![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 9/13. 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 1/194:38 pm -
1 stop8h 00m
Sat 1/238:30 am -
2 stops11h 21m
Deal found 9/13![United Airlines logo]()
$514
Last-minute flights from Brownsville to SeattleDiscover last-minute flight deals from Brownsville to Seattle. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Brownsville to Seattle. Data last updated September 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/254:37 pm -
1 stop8h 23m
Tue 9/2912:00 pm -
1 stop7h 50m
Deal found 9/10![United Airlines logo]()
$459
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Sat 9/264:17 pm -
1 stop7h 35m
Wed 9/305:30 am -
1 stop7h 56m
Deal found 9/13![American Airlines logo]()
$520
This United Airlines deal was found by Cheapflights users on 9/13. 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 9/2912:05 pm -
1 stop8h 58m
Sat 10/311:59 pm -
1 stop9h 24m
Deal found 9/13![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/217:15 am -
2 stops12h 22m
Sat 10/2412:00 pm -
1 stop7h 50m
Deal found 9/10![United Airlines logo]()
$494
Find 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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $399 (American Airlines) |
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 7,457,451 searches. Data last updated September 15, 2026.
Use the filters below to find and compare flights from Brownsville to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BrownsvilleSeattle
BRO Brownsville South Padre Is. Intl - SEA Seattle/Tacoma Intl
BROSEA
Brownsville South Padre Is. Intl
Fri 9/25
4:37 pm-11:00 pm
1 stop8h 23m
Seattle/Tacoma Intl
Tue 9/29
12:00 pm-9:50 pm
1 stop7h 50m
$459
BrownsvilleSeattle
BRO Brownsville South Padre Is. Intl - SEA Seattle/Tacoma Intl
BROSEA
Brownsville South Padre Is. Intl
Tue 9/29
12:05 pm-9:01 pm
2 stops10h 56m
Seattle/Tacoma Intl
Sat 10/3
11:59 pm-11:23 am
1 stop9h 24m
$484
Quickest round-trip
BrownsvilleSeattle
BRO Brownsville South Padre Is. Intl - SEA Seattle/Tacoma Intl
BROSEA
Brownsville South Padre Is. Intl
Sat 10/3
4:17 pm-9:52 pm
1 stop7h 35m
Seattle/Tacoma Intl
Fri 10/9
2:26 pm-10:57 pm
1 stop6h 31m
$489
BrownsvilleSeattle
BRO Brownsville South Padre Is. Intl - SEA Seattle/Tacoma Intl
BROSEA
Brownsville South Padre Is. Intl
Wed 10/21
9:10 am-2:53 pm
1 stop7h 43m
Seattle/Tacoma Intl
Sat 10/24
11:59 pm-11:19 am
1 stop9h 20m
$489
BrownsvilleSeattle
BRO Brownsville South Padre Is. Intl - SEA Seattle/Tacoma Intl
BROSEA
Brownsville South Padre Is. Intl
Tue 1/19
4:38 pm-10:38 pm
1 stop8h 00m
Seattle/Tacoma Intl
Sat 1/23
8:30 am-9:51 pm
2 stops11h 21m
$514
Sorted by cheapest first
Compare providers for flights from Brownsville to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Brownsville to Seattle in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Brownsville-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Brownsville-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Brownsville-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Brownsville-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Brownsville-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
BRO-SEA
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.
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 September 15, 2026.
Get a feel of what it's like to fly with 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.
Boarding
7.7
Food
6.7
Overall
7.4
Entertainment
7.1
Comfort
7.3
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Boarding
7.7
Food
6.7
Overall
7.4
Entertainment
7.1
Comfort
7.3
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Boarding
7.7
Food
6.7
Overall
7.4
Entertainment
7.1
Comfort
7.3
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
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Brownsville and Seattle flights
Browse other Brownsville and Seattle flight options. Last updated on September 15, 2026.
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Top 2 airlines flying from Brownsville to Seattle
Discover the top 2 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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$328 | Average$488 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$339 | Average$468 | FlexibilityNo cancel fee | On-time69% |