Best Flight From Washington Dulles Intl. To SEA

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Amazing IAD to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. were $208 for round trip flights and $110 for one-way flights in the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Apr 15 - Sun, Apr 19
IAD
Washington
SEA
Seattle
$208 Roundtrip, found 2 days ago
$208
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Apr 15 from Washington to Seattle, returning Sun, Apr 19, priced at $208 found 2 days ago
Wed, Apr 8 - Tue, Apr 14
IAD
Washington
SEA
Seattle
$209 Roundtrip, found 2 days ago
$209
Roundtrip
found 2 days ago
Select United flight, departing Wed, Apr 8 from Washington to Seattle, returning Tue, Apr 14, priced at $209 found 2 days ago
Wed, Apr 8 - Tue, Apr 14
IAD
Washington
SEA
Seattle
$223 Roundtrip, found 2 days ago
$223
Roundtrip
found 2 days ago
Select United flight, departing Wed, Apr 8 from Washington to Seattle, returning Tue, Apr 14, priced at $223 found 2 days ago
Wed, Apr 8 - Tue, Apr 14
IAD
Washington
SEA
Seattle
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Wed, Apr 8 from Washington to Seattle, returning Tue, Apr 14, priced at $225 found 2 days ago
Tue, Apr 7 - Mon, Apr 13
IAD
Washington
SEA
Seattle
$228 Roundtrip, found 2 days ago
$228
Roundtrip
found 2 days ago
Select United flight, departing Tue, Apr 7 from Washington to Seattle, returning Mon, Apr 13, priced at $228 found 2 days ago
Fri, May 1 - Sat, May 9
IAD
Washington
SEA
Seattle
$232 Roundtrip, found 3 hours ago
$232
Roundtrip
found 3 hours ago
Select Southwest Airlines flight, departing Fri, May 1 from Washington to Seattle, returning Sat, May 9, priced at $232 found 3 hours ago

Hotels near Seattle - Tacoma Intl. Airport (SEA)

DoubleTree by Hilton Seattle Airport

DoubleTree by Hilton Seattle Airport

4 out of 5
18740 International Boulevard SeaTac WA
$106 nightly
The price is $121 total per night from Mar 22 to Mar 23
$121 total
Mar 22 - Mar 23
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, 2 restaurants, and breakfast (surcharge). Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Westfield Southcenter Mall and Silver Dollar Casino are located nearby.
7.8/10 Good! (2,932 reviews)
Extremely nice hotel...

Reviewed on Mar 13, 2026

Opens in a new windowDoubleTree by Hilton Seattle Airport
Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd SeaTac WA
$119 nightly
The price is $136 total per night from Apr 5 to Apr 6
$136 total
Apr 5 - Apr 6
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the restaurant in our reviews. Popular attractions Westfield Southcenter Mall and Silver Dollar Casino are located nearby.
9.2/10 Wonderful! (7,892 reviews)
WAS PERFECT IN ALL WAYS

Reviewed on Mar 13, 2026

Opens in a new windowCoast Gateway Hotel
Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA

Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA

3 out of 5
3100 South 192nd Street SeaTac WA
$101 nightly
The price is $116 total per night from Mar 16 to Mar 17
$116 total
Mar 16 - Mar 17
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff in our reviews. Popular attractions Westfield Southcenter Mall and Silver Dollar Casino are located nearby.
9/10 Wonderful! (6,581 reviews)
Room was great

Reviewed on Mar 13, 2026

Opens in a new windowCountry Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
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Hilton Seattle Airport & Conference Center

Hilton Seattle Airport & Conference Center

4 out of 5
17620 International Blvd SeaTac WA
$130 nightly
The price is $149 total per night from Mar 16 to Mar 17
$149 total
Mar 16 - Mar 17
Total with taxes and fees
Stay at this hotel in SeaTac. Enjoy free WiFi, breakfast (surcharge), and a free airport shuttle. Our guests praise the helpful staff in our reviews. Popular attractions Westfield Southcenter Mall and Silver Dollar Casino are located nearby.
8.4/10 Very Good! (1,226 reviews)
Staff was great. Very close to airport and light rail.

Reviewed on Mar 13, 2026

Opens in a new windowHilton Seattle Airport & Conference Center
Red Roof Inn Seattle Airport - SEATAC

Red Roof Inn Seattle Airport - SEATAC

2 out of 5
16838 International Boulevard SeaTac WA
$58 nightly
The price is $67 total per night from Mar 22 to Mar 23
$67 total
Mar 22 - Mar 23
Total with taxes and fees
Stay at this hotel in SeaTac. Enjoy free WiFi, a free airport shuttle, and a fitness center. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Westfield Southcenter Mall and Silver Dollar Casino are located nearby.
7.8/10 Good! (4,841 reviews)
Quiet, Ramada Inn has good Vietnamese food, 13 Coins is just down the street...a great res

Reviewed on Mar 13, 2026

Opens in a new windowRed Roof Inn Seattle Airport - SEATAC
SureStay Hotel by Best Western SeaTac Airport North

SureStay Hotel by Best Western SeaTac Airport North

3.5 out of 5
3000 S 176th St SeaTac WA
$83 nightly
The price is $96 total per night from Mar 22 to Mar 23
$96 total
Mar 22 - Mar 23
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, free parking, and breakfast (surcharge). Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Westfield Southcenter Mall and Silver Dollar Casino are located nearby.
8/10 Very Good! (2,068 reviews)
Upgrade to smart tv would be a plus

Reviewed on Mar 13, 2026

Opens in a new windowSureStay Hotel by Best Western SeaTac Airport North
La Quinta Inn & Suites by Wyndham Seattle Sea-Tac Airport

La Quinta Inn & Suites by Wyndham Seattle Sea-Tac Airport

3 out of 5
2824 South 188th St. SeaTac WA
$87 nightly
The price is $100 total per night from Mar 15 to Mar 16
$100 total
Mar 15 - Mar 16
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Westfield Southcenter Mall and Silver Dollar Casino are located nearby.
7.2/10 Good! (2,612 reviews)
Airport shuttle service was very slow. Many turnovers of passengers before I was picked up. Otherwise my stay was great.

Reviewed on Mar 12, 2026

Opens in a new windowLa Quinta Inn & Suites by Wyndham Seattle Sea-Tac Airport
Radisson Hotel Seattle Airport

Radisson Hotel Seattle Airport

4 out of 5
18118 International Blvd SeaTac WA
$151 nightly
The price is $172 total per night from Mar 20 to Mar 21
$172 total
Mar 20 - Mar 21
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, breakfast (surcharge), and a free airport shuttle. Our guests praise the restaurant and the helpful staff in our reviews. Popular attractions Westfield Southcenter Mall and Silver Dollar Casino are located nearby.
8.8/10 Excellent! (1,833 reviews)
Great location and a quick walk to Sea-Tac terminal. Wonderful 13 Coins restaurant right across the parking lot.

Reviewed on Mar 12, 2026

Opens in a new windowRadisson Hotel Seattle Airport
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Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Top Picks

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.