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 $245 for round trip flights and $116 for one-way flights in the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Aug 26 - Sat, Sep 5
IAD
Washington
SEA
Seattle
$245 Roundtrip, found 6 hours ago
$245
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Aug 26 from Washington to Seattle, returning Sat, Sep 5, priced at $245 found 6 hours ago
Wed, Aug 26 - Sat, Sep 5
IAD
Washington
SEA
Seattle
$255 Roundtrip, found 6 hours ago
$255
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Aug 26 from Washington to Seattle, returning Sat, Sep 5, priced at $255 found 6 hours ago
Wed, Aug 26 - Sat, Sep 5
IAD
Washington
SEA
Seattle
$275 Roundtrip, found 6 hours ago
$275
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Wed, Aug 26 from Washington to Seattle, returning Sat, Sep 5, priced at $275 found 6 hours ago
Wed, Aug 26 - Sat, Sep 5
IAD
Washington
SEA
Seattle
$280 Roundtrip, found 6 hours ago
$280
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Aug 26 from Washington to Seattle, returning Sat, Sep 5, priced at $280 found 6 hours ago
Wed, Aug 26 - Sat, Sep 5
IAD
Washington
SEA
Seattle
$285 Roundtrip, found 6 hours ago
$285
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Aug 26 from Washington to Seattle, returning Sat, Sep 5, priced at $285 found 6 hours ago
Fri, Jun 5 - Sat, Jun 13
IAD
Washington
SEA
Seattle
$289 Roundtrip, found 1 day ago
$289
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Jun 5 from Washington to Seattle, returning Sat, Jun 13, priced at $289 found 1 day 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 May 18 to May 19
$121 total
May 18 - May 19
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! (3,014 reviews)
It's not bad, but it's not great. Smells like an old hotel in places. Staff was nice. Had to pay $35 for parking, so more expensive than other options that don't blindside you with fees. Hot tub was also closed... i really wanted a soak.

Reviewed on Apr 28, 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
$132 nightly
The price is $150 total per night from Apr 30 to May 1
$150 total
Apr 30 - May 1
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! (7,977 reviews)
Can’t find a upside

Reviewed on Apr 27, 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
$115 nightly
The price is $131 total per night from May 11 to May 12
$131 total
May 11 - May 12
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! (6,533 reviews)
Everything was great but the beds.. beds are really hard

Reviewed on Apr 28, 2026

Opens in a new windowCountry Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
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Days Inn by Wyndham Seatac Airport

Days Inn by Wyndham Seatac Airport

2 out of 5
19015 International Blvd SeaTac WA
$80 nightly
The price is $90 total per night from Apr 30 to May 1
$90 total
Apr 30 - May 1
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.
7.6/10 Good! (1,300 reviews)
The bathrooms could be updated

Reviewed on Apr 28, 2026

Opens in a new windowDays Inn by Wyndham Seatac Airport
Red Roof Inn Seattle Airport - SEATAC

Red Roof Inn Seattle Airport - SEATAC

2 out of 5
16838 International Boulevard SeaTac WA
$63 nightly
The price is $73 total per night from May 5 to May 6
$73 total
May 5 - May 6
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! (4,866 reviews)
Let's say there is no sound privacy from rooms above and next to you, some sketchy folks

Reviewed on Apr 28, 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
$89 nightly
The price is $102 total per night from May 3 to May 4
$102 total
May 3 - May 4
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! (2,203 reviews)
Close to the SeaTac Int’l. Airport, yet quiet. Staff is friendly and helpful. Has easy, accessible transportation shuttle. Close to shops, restaurants and attractions. Look forward to coming back.

Reviewed on Apr 27, 2026

Opens in a new windowSureStay Hotel by Best Western SeaTac Airport North
Ramada by Wyndham SeaTac Airport

Ramada by Wyndham SeaTac Airport

2.5 out of 5
16720 International Blvd SeaTac WA
$75 nightly
The price is $86 total per night from Apr 30 to May 1
$86 total
Apr 30 - May 1
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, free parking, and a free airport shuttle. Our guests praise the clean rooms in our reviews. Popular attractions Westfield Southcenter Mall and Silver Dollar Casino are located nearby.
6.8/10 (1,969 reviews)
Noise

Reviewed on Apr 28, 2026

Opens in a new windowRamada by Wyndham SeaTac Airport
Courtyard by Marriott Seattle SeaTac Airport

Courtyard by Marriott Seattle SeaTac Airport

4 out of 5
19031 International Blvd. SeaTac WA
$125 nightly
The price is $143 total per night from May 3 to May 4
$143 total
May 3 - May 4
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 Silver Dollar Casino are located nearby.
8.8/10 Excellent! (1,702 reviews)
Very clean, convenient bar/food. Rooms and bathrooms appear updated. Staff very helpful.

Reviewed on Apr 27, 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.