Cheap flights from Brownsville to Sequim from CA $306

View CA $306 flight on Fri, Aug. 15, 2025Opens in a new window

Popular airlines from Brownsville to Sequim

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Cheap flights from Brownsville (BRO) to Sequim (SEA)

Prices were available within the past 7 days and start at CA $306 for one-way flights and CA $811 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Aug. 15 - Sun, Aug. 17
HRL
Harlingen
SEA
Seattle
CA $811 Roundtrip, found 4 days ago
CA $811
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Aug. 15 from Harlingen to Seattle, returning Sun, Aug. 17, priced at CA $811 found 4 days ago
American Airlines
Fri, Aug. 15 - Sun, Aug. 17
HRL
Harlingen
SEA
Seattle
CA $845 Roundtrip, found 4 days ago
CA $845
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Aug. 15 from Harlingen to Seattle, returning Sun, Aug. 17, priced at CA $845 found 4 days ago
American Airlines
Fri, Aug. 15 - Sun, Aug. 17
HRL
Harlingen
SEA
Seattle
CA $893 Roundtrip, found 4 days ago
CA $893
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Aug. 15 from Harlingen to Seattle, returning Sun, Aug. 17, priced at CA $893 found 4 days ago
American Airlines
Fri, Aug. 15 - Sun, Aug. 17
HRL
Harlingen
SEA
Seattle
CA $926 Roundtrip, found 4 days ago
CA $926
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Aug. 15 from Harlingen to Seattle, returning Sun, Aug. 17, priced at CA $926 found 4 days ago
American Airlines
Fri, Aug. 15 - Sun, Aug. 17
HRL
Harlingen
SEA
Seattle
CA $944 Roundtrip, found 4 days ago
CA $944
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Aug. 15 from Harlingen to Seattle, returning Sun, Aug. 17, priced at CA $944 found 4 days ago
American Airlines
Fri, Aug. 15 - Sun, Aug. 17
HRL
Harlingen
SEA
Seattle
CA $957 Roundtrip, found 4 days ago
CA $957
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Aug. 15 from Harlingen to Seattle, returning Sun, Aug. 17, priced at CA $957 found 4 days ago

Find the cheapest month to fly from Harlingen (HRL) to Seattle (SEA)

February is typically the cheapest month to fly

From CA $269 - CA $595 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.