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 $241 for round trip flights and $145 for one-way flights in the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 30 - Tue, Nov 3
IAD
Washington
SEA
Seattle
$241 Roundtrip, found 1 day ago
$241
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 30 from Washington to Seattle, returning Tue, Nov 3, priced at $241 found 1 day ago
Sat, Oct 24 - Mon, Oct 26
IAD
Washington
SEA
Seattle
$242 Roundtrip, found 2 days ago
$242
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Oct 24 from Washington to Seattle, returning Mon, Oct 26, priced at $242 found 2 days ago
Sat, Oct 3 - Sat, Oct 10
IAD
Washington
SEA
Seattle
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Oct 3 from Washington to Seattle, returning Sat, Oct 10, priced at $249 found 1 day ago
Fri, Oct 30 - Tue, Nov 3
IAD
Washington
SEA
Seattle
$251 Roundtrip, found 1 day ago
$251
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 30 from Washington to Seattle, returning Tue, Nov 3, priced at $251 found 1 day ago
Fri, Oct 30 - Tue, Nov 3
IAD
Washington
SEA
Seattle
$260 Roundtrip, found 1 day ago
$260
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Oct 30 from Washington to Seattle, returning Tue, Nov 3, priced at $260 found 1 day ago
Fri, Oct 30 - Tue, Nov 3
IAD
Washington
SEA
Seattle
$271 Roundtrip, found 1 day ago
$271
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Oct 30 from Washington to Seattle, returning Tue, Nov 3, priced at $271 found 1 day ago

Hotels near Seattle - Tacoma Intl. Airport (SEA)

Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd SeaTac WA
$129 nightly
The price is $147 total per night from Oct 10 to Oct 11
$147 total
Oct 10 - Oct 11
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 Angle Lake Park are located nearby.
Opens in a new windowCoast Gateway Hotel
Hilton Seattle Airport & Conference Center

Hilton Seattle Airport & Conference Center

4 out of 5
17620 International Blvd SeaTac WA
$113 nightly
The price is $129 total per night from Oct 4 to Oct 5
$129 total
Oct 4 - Oct 5
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 Angle Lake Park are located nearby.
8.4/10 Very Good! (1,519 reviews)
"Near airport, great shuttle and spacious lobby! A little update needed! Bed and pillows were so comfortable!"

Reviewed on Sep 9, 2026

Opens in a new windowHilton Seattle Airport & Conference Center
DoubleTree by Hilton Seattle Airport

DoubleTree by Hilton Seattle Airport

4 out of 5
18740 International Boulevard SeaTac WA
$135 nightly
The price is $154 total per night from Sep 15 to Sep 16
$154 total
Sep 15 - Sep 16
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 Angle Lake Park are located nearby.
8/10 Very Good! (3,331 reviews)
"Room needed repair. Bathroom door had a strip of wood to cover hole but the strip was coming off. Carpet smelled. No fitted sheet on bed so I ended up on bare mattress at some point. No fridge in room. Hot tub no jets. Restaurant charged $30 for a burger! Signs everywhere to tip! Beyond awkward. ..."

Reviewed on Sep 9, 2026

Opens in a new windowDoubleTree by Hilton Seattle Airport
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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
$108 nightly
The price is $124 total per night from Oct 10 to Oct 11
$124 total
Oct 10 - Oct 11
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 Angle Lake Park are located nearby.
9/10 Wonderful! (6,643 reviews)
"Too noisy."

Reviewed on Sep 9, 2026

Opens in a new windowCountry Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
Red Roof Inn Seattle Airport - SEATAC

Red Roof Inn Seattle Airport - SEATAC

2 out of 5
16838 International Boulevard SeaTac WA
$62 nightly
The price is $72 total per night from Oct 1 to Oct 2
$72 total
Oct 1 - Oct 2
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 Angle Lake Park are located nearby.
7.8/10 Good! (4,948 reviews)
"It's an older hotel at the end of everything so you will have a walk to food."

Reviewed on Sep 9, 2026

Opens in a new windowRed Roof Inn Seattle Airport - SEATAC
Quality Inn SeaTac Airport-Seattle

Quality Inn SeaTac Airport-Seattle

2.5 out of 5
2900 S 192nd St SeaTac WA
$76 nightly
The price is $88 total per night from Oct 1 to Oct 2
$88 total
Oct 1 - Oct 2
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and a free airport shuttle. Our guests praise the breakfast and the helpful staff in our reviews. Popular attractions Westfield Southcenter Mall and Angle Lake Park are located nearby.
Opens in a new windowQuality Inn SeaTac Airport-Seattle
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
$93 nightly
The price is $106 total per night from Oct 1 to Oct 2
$106 total
Oct 1 - Oct 2
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 Angle Lake Park are located nearby.
8/10 Very Good! (2,495 reviews)
"Super close to airport- can take elevator up to crosswalk over to airport"

Reviewed on Sep 9, 2026

Opens in a new windowSureStay Hotel by Best Western SeaTac Airport North
Courtyard by Marriott Seattle SeaTac Airport

Courtyard by Marriott Seattle SeaTac Airport

4 out of 5
19031 International Blvd. SeaTac WA
$116 nightly
The price is $133 total per night from Oct 4 to Oct 5
$133 total
Oct 4 - Oct 5
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 helpful staff and the clean rooms in our reviews. Popular attractions Westfield Southcenter Mall and Angle Lake Park are located nearby.
8.8/10 Excellent! (1,962 reviews)
"We would stay there again."

Reviewed on Sep 9, 2026

Opens in a new windowCourtyard by Marriott Seattle SeaTac 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.