Cheap flights from IAD to SEA (Washington Dulles Intl. to Seattle - Tacoma Intl.)

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

Cheap Flights from IAD to SEA starting at $145 One Way, $295 Round Trip

Prices starting at $295 for return flights and $145 for one-way flights to Seattle - Tacoma Intl. were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 16 - Mon, Sep 28
IAD
Washington
SEA
Seattle
$295 Roundtrip, found 6 days ago
$295
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Sep 16 from Washington to Seattle, returning Mon, Sep 28, priced at $295 found 6 days ago
Thu, Sep 24 - Mon, Sep 28
IAD
Washington
SEA
Seattle
$307 Roundtrip, found 5 days ago
$307
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Sep 24 from Washington to Seattle, returning Mon, Sep 28, priced at $307 found 5 days ago
Wed, Sep 23 - Mon, Sep 28
IAD
Washington
SEA
Seattle
$309 Roundtrip, found 4 days ago
$309
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 23 from Washington to Seattle, returning Mon, Sep 28, priced at $309 found 4 days ago
Wed, Sep 23 - Mon, Sep 28
IAD
Washington
SEA
Seattle
$311 Roundtrip, found 4 days ago
$311
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Sep 23 from Washington to Seattle, returning Mon, Sep 28, priced at $311 found 4 days ago
Tue, Sep 22 - Mon, Sep 28
IAD
Washington
SEA
Seattle
$314 Roundtrip, found 5 days ago
$314
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Sep 22 from Washington to Seattle, returning Mon, Sep 28, priced at $314 found 5 days ago

Hotel Ideas near Seattle - Tacoma Intl.

Airport Hotels near Seattle - Tacoma Intl.

Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd SeaTac WA
$144 nightly
The price is $164 total per night from Sep 1 to Sep 2
$164 total
Sep 1 - Sep 2
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 ...
9.2/10 Wonderful! (7,878 reviews)
"Will stay here again when in seatac area"

Reviewed on Aug 17, 2026

Coast Gateway Hotel
Hilton Seattle Airport & Conference Center

Hilton Seattle Airport & Conference Center

4 out of 5
17620 International Blvd SeaTac WA
$144 nightly
The price is $163 total per night from Sep 1 to Sep 2
$163 total
Sep 1 - Sep 2
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 ...
Hilton Seattle Airport & Conference Center
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
$119 nightly
The price is $136 total per night from Sep 1 to Sep 2
$136 total
Sep 1 - Sep 2
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 ...
9/10 Wonderful! (6,559 reviews)
"check in was professionally done and pleasant. Rooms were clean. Everything was great. Thought breakfast could have been a little better"

Reviewed on Aug 17, 2026

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

Hotels In Seattle

Mayflower Park Hotel

Mayflower Park Hotel

4 out of 5
405 Olive Way Seattle WA
$211 nightly
The price is $249 total per night from Sep 13 to Sep 14
$249 total
Sep 13 - Sep 14
Total with taxes and fees
Book a stay at this luxury hotel in Seattle. Enjoy free WiFi, breakfast (surcharge), and 24-hour room service. Our guests praise the breakfast and the restaurant ...
9.2/10 Wonderful! (2,744 reviews)
"Everything was great! Valet parking took a little bit to long get our car back!"

Reviewed on Aug 17, 2026

Mayflower Park Hotel
Mediterranean Inn

Mediterranean Inn

3 out of 5
425 Queen Anne Ave N Seattle WA
$204 nightly
The price is $241 total per night from Sep 15 to Sep 16
$241 total
Sep 15 - Sep 16
Total with taxes and fees
Book a stay at this business-friendly hotel in Seattle. Enjoy free WiFi, a rooftop terrace, and a 24-hour fitness center. Our guests praise the helpful staff ...
9.4/10 Exceptional! (6,048 reviews)
"Their best feature was baggage storage for free on our return journey when we had no hotel room booked"

Reviewed on Aug 17, 2026

Mediterranean Inn
The Paramount Hotel

The Paramount Hotel

3.5 out of 5
724 Pine St Seattle WA
$199 nightly
The price is $235 total per night from Aug 18 to Aug 19
$235 total
Aug 18 - Aug 19
Total with taxes and fees
Book a stay at this business-friendly hotel in Seattle. Enjoy free WiFi, 2 restaurants, and breakfast (surcharge). Our guests praise the restaurant and the helpful ...
9.2/10 Wonderful! (3,627 reviews)
"The hotel was overall pretty nice, but here's the reason for the poor score. When I booked the hotel months ago, I called the property and spoke with someone who assured me we could leave our bags at the front desk for a few hours because of a cruise, I even got the person's name. Then when we were ..."

Reviewed on Aug 17, 2026

The Paramount Hotel
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.

Seattle Hotels With Airport Transportation

Ramada by Wyndham SeaTac Airport

Ramada by Wyndham SeaTac Airport

2.5 out of 5
16720 International Blvd SeaTac WA
$90 nightly
The price is $103 total per night from Aug 18 to Aug 19
$103 total
Aug 18 - Aug 19
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. ...
6.8/10 (1,959 reviews)
"Crazy inconsistent. Wonderful staff at check-in & a different grumpy staff on check out. Property is run down and dated yet the beds were very comfortable. Back parking lot very sketchy yet airport shuttle service good, but most of the seatbelts were broken. Restaurant on Property closed all 3 days ..."

Reviewed on Aug 17, 2026

Ramada 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
$90 nightly
The price is $103 total per night from Aug 18 to Aug 19
$103 total
Aug 18 - Aug 19
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. ...
Red Roof Inn Seattle Airport - SEATAC
Days Inn by Wyndham Seatac Airport

Days Inn by Wyndham Seatac Airport

2 out of 5
19015 International Blvd SeaTac WA
$120 nightly
The price is $135 total per night from Sep 1 to Sep 2
$135 total
Sep 1 - Sep 2
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 ...
Days Inn by Wyndham Seatac Airport
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.

Low Priced Seattle Hotels

Red Roof Inn Seattle Airport - SEATAC

Red Roof Inn Seattle Airport - SEATAC

2 out of 5
16838 International Boulevard SeaTac WA
$90 nightly
The price is $103 total per night from Aug 18 to Aug 19
$103 total
Aug 18 - Aug 19
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. ...
Red Roof Inn Seattle Airport - SEATAC
Days Inn by Wyndham Seatac Airport

Days Inn by Wyndham Seatac Airport

2 out of 5
19015 International Blvd SeaTac WA
$120 nightly
The price is $135 total per night from Sep 1 to Sep 2
$135 total
Sep 1 - Sep 2
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 ...
Days Inn by Wyndham Seatac Airport
Ramada by Wyndham SeaTac Airport

Ramada by Wyndham SeaTac Airport

2.5 out of 5
16720 International Blvd SeaTac WA
$90 nightly
The price is $103 total per night from Aug 18 to Aug 19
$103 total
Aug 18 - Aug 19
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. ...
6.8/10 (1,959 reviews)
"Crazy inconsistent. Wonderful staff at check-in & a different grumpy staff on check out. Property is run down and dated yet the beds were very comfortable. Back parking lot very sketchy yet airport shuttle service good, but most of the seatbelts were broken. Restaurant on Property closed all 3 days ..."

Reviewed on Aug 17, 2026

Ramada by Wyndham SeaTac Airport
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.

Family Friendly Hotels in Seattle

Embassy Suites by Hilton Seattle Bellevue

Embassy Suites by Hilton Seattle Bellevue

3.5 out of 5
3225 158th Avenue SE Bellevue WA
$171 nightly
The price is $199 total per night from Aug 30 to Aug 31
$199 total
Aug 30 - Aug 31
Total with taxes and fees
Book a stay at this family-friendly hotel in Bellevue. Enjoy free breakfast, free WiFi, and room service. Our guests praise the breakfast and the helpful staff ...
Embassy Suites by Hilton Seattle Bellevue
Homewood Suites by Hilton Lynnwood Seattle Everett, WA

Homewood Suites by Hilton Lynnwood Seattle Everett, WA

3 out of 5
18123 Alderwood Mall Pkwy Lynnwood WA
$111 nightly
The price is $127 total per night from Sep 3 to Sep 4
$127 total
Sep 3 - Sep 4
Total with taxes and fees
Stay at this hotel in Lynnwood. Enjoy free breakfast, free WiFi, and a 24-hour fitness center. Our guests praise the breakfast and the pool in our reviews. Popular ...
8.6/10 Excellent! (1,003 reviews)
"Room was spacious, well laid out for utility and clean. Parking was adequate, staff was courteous and engaging and breakfast was good as well."

Reviewed on Aug 17, 2026

Homewood Suites by Hilton Lynnwood Seattle Everett, WA
Staypineapple, The Maxwell Hotel, Seattle Center Seattle

Staypineapple, The Maxwell Hotel, Seattle Center Seattle

3.5 out of 5
300 Roy St Seattle WA
$177 nightly
The price is $209 total per night from Sep 15 to Sep 16
$209 total
Sep 15 - Sep 16
Total with taxes and fees
Book a stay at this boutique hotel in Seattle. Enjoy breakfast (surcharge), a fitness center, and parking (surcharge). Our guests praise the bar and the helpful ...
Staypineapple, The Maxwell Hotel, Seattle Center Seattle
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.

IAD to SEA Route Info

Origin Airport
Destination Airport
Number Of Airlines Serving
Distance
Shortest Flight Departure Time
Shortest Flight Departure Date
IAD Address & GPS
Address:
1 Saarinen Circle
Dulles VA, 20166
United States
IATA Code:
IAD
Longitude:
-77.447735
Latitude:
38.95315
Time Zone:
America/New_York
SEA Address & GPS
Address:
Seattle WA, 98158
United States
IATA Code:
SEA
Longitude:
-122.301732
Latitude:
47.443839
Time Zone:
America/Los_Angeles

Frequently asked questions

Are there non-stop flights from IAD to SEA?
If you're hoping to get from IAD to SEA in the quickest possible time, you're in luck — there are 3 airlines which advertise direct services. These are some of the most popular:

  • Delta Air Lines
  • United Airlines
  • Alaska Airlines

What is the shortest flight from IAD to Sea-Tac Airport?
Amassed a decent amount of air points? If so, then take the opportunity to upgrade your seat on your Washington to Seattle journey. With a minimum flight time of 13 hours and 8 minutes, you'll want to be as comfortable as you can.
How many hours flight from Dulles Intl. Airport to Sea-Tac Airport?
It typically takes about 13 hours and 12 minutes to travel from Washington Dulles Intl. Airport (IAD) to Sea-Tac Airport. You'll be in the air for some time, so think about bringing some entertainment, like a book or some movies.
What airlines have the most flights from Washington Dulles Intl. Airport (IAD) to Sea-Tac Airport?
What do you take into account when deciding who to travel with — fantastic service? Tickets that don't cost an arm and a leg? There are several carriers advertising flights between Washington Dulles Intl. Airport (IAD) and SEA to pick from. Take a look at Delta Air Lines (DL), one of the more well-known options which provides 91 flights every month. Also check out the deals available with United Airlines (UA). Offering 86 flights each month between Washington and Seattle, they'll make sure your journey is just as pleasurable as the destination.

Map To Nearby Hotels

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.

More to Explore