$379+ Cheap flights from Seattle to Brownsville (SEA - BRO)
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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BRO
Oct 4 — Oct 111
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Brownsville 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 Seattle to Brownsville
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Best
Last-minute
One-way
Cheapest flights from Seattle to BrownsvilleExplore the most affordable flight options available from Seattle to Brownsville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 4, 2026.
Explore the most affordable flight options available from Seattle to Brownsville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 4, 2026.
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 10/2912:25 am -
1 stop7h 40m
Tue 11/35:49 am -
1 stop7h 23m
Deal found 9/2![American Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/167:00 am -
1 stop9h 13m
Mon 9/2112:05 pm -
1 stop9h 03m
Deal found 8/31![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/1511:59 pm -
1 stop9h 24m
Sat 9/1912:05 pm -
1 stop9h 03m
Deal found 8/31![United Airlines logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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.
Fri 10/1612:24 am -
1 stop7h 41m
Wed 10/2110:39 am -
1 stop9h 33m
Deal found 8/30![Alaska Airlines logo]()
$489
This Alaska Airlines deal was found by Cheapflights users on 8/31. 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.
Fri 10/3012:21 pm -
1 stop8h 36m
Tue 11/310:40 am -
2 stops11h 47m
Deal found 8/31![Alaska Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/308:35 pm -
2 stops12h 44m
Tue 11/311:55 am -
2 stops11h 24m
Deal found 9/1![United Airlines logo]()
$499
This American Airlines deal was found by Cheapflights users on 9/1. 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 10/162:03 pm -
1 stop6h 54m
Sun 10/185:49 am -
1 stop7h 25m
Deal found 9/1![American Airlines logo]()
$526
Best flights from Seattle to BrownsvilleDiscover carefully curated flight deals from Seattle to Brownsville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
Discover carefully curated flight deals from Seattle to Brownsville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 4, 2026.
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 10/2912:25 am -
1 stop7h 40m
Tue 11/35:49 am -
1 stop7h 23m
Deal found 9/2![American Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 8/31. 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.
Fri 10/1612:24 am -
1 stop7h 41m
Wed 10/2110:39 am -
1 stop9h 33m
Deal found 8/31![Alaska Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 10/1712:00 pm -
1 stop7h 50m
Wed 10/217:15 am -
1 stop9h 38m
Deal found 9/3![United Airlines logo]()
$529
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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.
Fri 10/3012:21 pm -
1 stop8h 36m
Tue 11/310:40 am -
2 stops11h 47m
Deal found 8/30![Alaska Airlines logo]()
$494
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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 12/151:15 am -
1 stop6h 56m
Wed 12/303:35 pm -
1 stop7h 25m
Deal found 8/30![Alaska Airlines logo]()
$600
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 12/168:17 am -
1 stop9h 13m
Tue 1/510:42 am -
1 stop8h 01m
Deal found 9/2![Alaska Airlines logo]()
$620
Last-minute flights from Seattle to BrownsvilleDiscover last-minute flight deals from Seattle to Brownsville. Data last updated September 4, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Brownsville. Data last updated September 4, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/1511:59 pm -
1 stop9h 24m
Sat 9/1912:05 pm -
1 stop9h 03m
Deal found 8/31![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/167:00 am -
1 stop9h 13m
Mon 9/2112:05 pm -
1 stop9h 03m
Deal found 8/31![United Airlines logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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.
Fri 10/1612:24 am -
1 stop7h 41m
Wed 10/2110:39 am -
1 stop9h 33m
Deal found 8/30![Alaska Airlines logo]()
$489
This American Airlines deal was found by Cheapflights users on 9/1. 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 10/162:03 pm -
1 stop6h 54m
Sun 10/185:49 am -
1 stop7h 25m
Deal found 9/1![American Airlines logo]()
$526
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Thu 10/2912:25 am -
1 stop7h 40m
Tue 11/35:49 am -
1 stop7h 23m
Deal found 9/2![American Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 8/31. 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.
Fri 10/3012:21 pm -
1 stop8h 36m
Tue 11/310:40 am -
2 stops11h 47m
Deal found 8/31![Alaska Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/308:35 pm -
2 stops12h 44m
Tue 11/311:55 am -
2 stops11h 24m
Deal found 9/1![United Airlines logo]()
$499
One-way flights from Seattle to BrownsvilleSearch for one-way flight options from Seattle to Brownsville. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
Search for one-way flight options from Seattle to Brownsville. Find affordable one-way fares based on user searches. Data last updated September 4, 2026.
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Sun 9/2711:59 pm -
1 stop9h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 9/1. 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 10/1610:26 am -
1 stop7h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![American Airlines logo]()
$380
This Priceline deal was found by Cheapflights users on 8/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:13 am -
2 stops11h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Alaska Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/165:00 am -
2 stops11h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![United Airlines logo]()
$466
Find flight deals from Seattle to Brownsville
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Brownsville (BRO). 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 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $379 (American Airlines) |
One-way from | $379 (United Airlines) |
Popular in | July |
Cheapest in | January |
Average price | $638 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Brownsville 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 4, 2026.
Use the filters below to find and compare flights from Seattle to Brownsville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBrownsville
SEA Seattle/Tacoma Intl - BRO Brownsville South Padre Is. Intl
SEABRO
Seattle/Tacoma Intl
Sun 9/27
11:59 pm-11:23 am
1 stop9h 24m
Brownsville South Padre Is. Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$379
SeattleBrownsville
SEA Seattle/Tacoma Intl - BRO Brownsville South Padre Is. Intl
SEABRO
Seattle/Tacoma Intl
Thu 10/29
12:25 am-10:05 am
1 stop7h 40m
Brownsville South Padre Is. Intl
Tue 11/3
5:49 am-11:12 am
1 stop7h 23m
$379
Quickest round-trip
SeattleBrownsville
SEA Seattle/Tacoma Intl - BRO Brownsville South Padre Is. Intl
SEABRO
Seattle/Tacoma Intl
Fri 10/16
10:26 am-7:28 pm
1 stop7h 02m
Brownsville South Padre Is. Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$380
SeattleBrownsville
SEA Seattle/Tacoma Intl - BRO Brownsville South Padre Is. Intl
SEABRO
Seattle/Tacoma Intl
Sun 9/27
10:13 am-11:32 pm
2 stops11h 19m
Brownsville South Padre Is. Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$439
SeattleBrownsville
SEA Seattle/Tacoma Intl - BRO Brownsville South Padre Is. Intl
SEABRO
Seattle/Tacoma Intl
Fri 10/16
5:00 am-6:13 pm
2 stops11h 13m
Brownsville South Padre Is. Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$466
SeattleBrownsville
SEA Seattle/Tacoma Intl - BRO Brownsville South Padre Is. Intl
SEABRO
Seattle/Tacoma Intl
Fri 10/16
12:24 am-10:05 am
1 stop7h 41m
Brownsville South Padre Is. Intl
Wed 10/21
10:39 am-6:12 pm
1 stop9h 33m
$489
SeattleBrownsville
SEA Seattle/Tacoma Intl - BRO Brownsville South Padre Is. Intl
SEABRO
Seattle/Tacoma Intl
Fri 10/30
12:21 pm-10:57 pm
1 stop8h 36m
Brownsville South Padre Is. Intl
Tue 11/3
10:40 am-8:27 pm
2 stops11h 47m
$494
SeattleBrownsville
SEA Seattle/Tacoma Intl - BRO Brownsville South Padre Is. Intl
SEABRO
Seattle/Tacoma Intl
Sat 10/17
12:00 pm-9:50 pm
1 stop7h 50m
Brownsville South Padre Is. Intl
Wed 10/21
7:15 am-2:53 pm
1 stop9h 38m
$529
SeattleBrownsville
SEA Seattle/Tacoma Intl - BRO Brownsville South Padre Is. Intl
SEABRO
Seattle/Tacoma Intl
Tue 12/15
1:15 am-10:11 am
1 stop6h 56m
Brownsville South Padre Is. Intl
Wed 12/30
3:35 pm-9:00 pm
1 stop7h 25m
$600
SeattleBrownsville
SEA Seattle/Tacoma Intl - BRO Brownsville South Padre Is. Intl
SEABRO
Seattle/Tacoma Intl
Wed 12/16
8:17 am-7:30 pm
1 stop9h 13m
Brownsville South Padre Is. Intl
Tue 1/5
10:42 am-4:43 pm
1 stop8h 01m
$620
Sorted by cheapest first
Compare providers for flights from Seattle to Brownsville
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 Seattle to Brownsville 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 Seattle-Brownsville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Brownsville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Brownsville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Brownsville 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 Seattle-Brownsville 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 Seattle to Brownsville
Have a flexible travel schedule? Discover the best time to fly to Brownsville from Seattle with our price prediction graph.
SEA-BRO
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 Seattle to Brownsville
Reviews of airlines servicing Brownsville
Get insights into the airlines that provide service to Brownsville. 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 Brownsville. Reviews last updated September 4, 2026.
Get a feel of what it's like to fly with United Airlines and American Airlines from Seattle to Brownsville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Overall
7.4
Food
6.7
Boarding
7.7
Comfort
7.3
Crew
8.1
Reviews
1 / 20
2.0
MediocreIsaac,May 2024
SHV - IAH
Entertainment
7.1
Overall
7.4
Food
6.7
Boarding
7.7
Comfort
7.3
Crew
8.1
Reviews
1 / 20
2.0
MediocreIsaac,May 2024
SHV - IAH
Entertainment
7.1
Overall
7.4
Food
6.7
Boarding
7.7
Comfort
7.3
Crew
8.1
Reviews
1 / 20
2.0
MediocreIsaac,May 2024
SHV - IAH
Related info for your journey
Find useful and relevant information for your journey from Seattle to Brownsville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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Alternative routes for Seattle to Brownsville
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Brownsville
Explore flights to Brownsville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 4, 2026.
Complete your trip
Complete your trip to Brownsville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Brownsville by cabin class
Find flights from Seattle to Brownsville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Brownsville flights
Browse other Seattle and Brownsville flight options. Last updated on September 4, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on September 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Seattle to Brownsville
Discover the top 2 airlines that operate flights from Seattle to Brownsville. 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 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$462 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$338 | Average$620 | FlexibilityNo cancel fee | On-time69% |