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

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Cheap Flights from IAD to SEA starting at $140 One Way, $252 Round Trip

Prices starting at $252 for return flights and $140 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 - Wed, Sep 23
IAD
Washington
SEA
Seattle
$252 Roundtrip, found 3 days ago
$252
Roundtrip
found 3 days ago
Select Bargain Flight flight, departing Wed, Sep 16 from Washington to Seattle, returning Wed, Sep 23, priced at $252 found 3 days ago
Fri, Sep 25 - Sat, Sep 26
IAD
Washington
SEA
Seattle
$255 Roundtrip, found 22 hours ago
$255
Roundtrip
found 22 hours ago
Select United flight, departing Fri, Sep 25 from Washington to Seattle, returning Sat, Sep 26, priced at $255 found 22 hours ago
Wed, Sep 16 - Wed, Sep 23
IAD
Washington
SEA
Seattle
$255 Roundtrip, found 3 days ago
$255
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Sep 16 from Washington to Seattle, returning Wed, Sep 23, priced at $255 found 3 days ago
Fri, Sep 11 - Thu, Sep 17
IAD
Washington
SEA
Seattle
$258 Roundtrip, found 2 days ago
$258
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Sep 11 from Washington to Seattle, returning Thu, Sep 17, priced at $258 found 2 days ago
Fri, Sep 25 - Sat, Sep 26
IAD
Washington
SEA
Seattle
$261 Roundtrip, found 22 hours ago
$261
Roundtrip
found 22 hours ago
Select United flight, departing Fri, Sep 25 from Washington to Seattle, returning Sat, Sep 26, priced at $261 found 22 hours ago

Hotel Ideas near Seattle - Tacoma Intl.

Airport Hotels near Seattle - Tacoma Intl.

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
$124 nightly
The price is $142 total per night from Aug 2 to Aug 3
$142 total
Aug 2 - Aug 3
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 ...
8/10 Very Good! (2,383 reviews)
"Room was decent for an overnight stay but definitely could use some upgrades and it’s time for the carpet to go. Overall decent stay but appreciate the clean sheets."

Reviewed on Jul 10, 2026

SureStay Hotel by Best Western SeaTac Airport North
Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd SeaTac WA
$183 nightly
The price is $208 total per night from Aug 3 to Aug 4
$208 total
Aug 3 - Aug 4
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! (7,939 reviews)
"Very clean and comfortable. Conveniently located by the airport which was nice too . Staff was friendly and helpful. Great stay."

Reviewed on Jul 10, 2026

Coast Gateway Hotel
Courtyard by Marriott Seattle SeaTac Airport

Courtyard by Marriott Seattle SeaTac Airport

4 out of 5
19031 International Blvd. SeaTac WA
$152 nightly
The price is $173 total per night from Jul 26 to Jul 27
$173 total
Jul 26 - Jul 27
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 ...
8.8/10 Excellent! (1,833 reviews)
"The front desk person seemed overwhelmed between checking us in and answering phones. He came off as rude and was short with his engagement. I work in customer service and this behavior would never be tolerated at my work. I wasn’t demanding or rude so there was no reason for him to be that way towards ..."

Reviewed on Jul 9, 2026

Courtyard by Marriott Seattle 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.

Hotels In Seattle

The Paramount Hotel

The Paramount Hotel

3.5 out of 5
724 Pine St Seattle WA
$210 nightly
The price is $248 total per night from Aug 9 to Aug 10
$248 total
Aug 9 - Aug 10
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! (3,558 reviews)
"Ckean room staff suoer nice lunch at resturant good if a bit over priced"

Reviewed on Jul 9, 2026

The Paramount Hotel
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
$124 nightly
The price is $142 total per night from Aug 2 to Aug 3
$142 total
Aug 2 - Aug 3
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 ...
8/10 Very Good! (2,383 reviews)
"Room was decent for an overnight stay but definitely could use some upgrades and it’s time for the carpet to go. Overall decent stay but appreciate the clean sheets."

Reviewed on Jul 10, 2026

SureStay Hotel by Best Western SeaTac Airport North
Crowne Plaza Seattle - Downtown by IHG

Crowne Plaza Seattle - Downtown by IHG

4 out of 5
1113 6th Ave Seattle WA
$204 nightly
The price is $241 total per night from Aug 3 to Aug 4
$241 total
Aug 3 - Aug 4
Total with taxes and fees
Book a stay at this business-friendly hotel in Seattle. Enjoy free WiFi, breakfast (surcharge), and a 24-hour fitness center. Our guests praise the helpful staff ...
9.2/10 Wonderful! (3,720 reviews)
"Yay"

Reviewed on Jul 10, 2026

Crowne Plaza Seattle - Downtown by IHG
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
$105 nightly
The price is $120 total per night from Jul 12 to Jul 13
$120 total
Jul 12 - Jul 13
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 (1,972 reviews)
"The restaurant was dirty, the food overcooked and the service was not very good, but the hotel staff and the shuttle drivers were excellent. I would stay there again but I would not eat at the restaurant on site."

Reviewed on Jul 10, 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
$99 nightly
The price is $113 total per night from Jul 19 to Jul 20
$113 total
Jul 19 - Jul 20
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. ...
7.8/10 Good! (4,965 reviews)
"Room was clean and the staff was helpful."

Reviewed on Jul 10, 2026

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
$111 nightly
The price is $125 total per night from Jul 15 to Jul 16
$125 total
Jul 15 - Jul 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 ...
7.6/10 Good! (1,370 reviews)
"The hotel was fine for an economical stay near the airport. Some features were worn and dated, but everything was clean. The only problem was the elevator was out of order and our room was on the fourth floor. There was another guest climbing the stairs ahead of us, an older woman with impaired mobility ..."

Reviewed on Jul 10, 2026

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
$99 nightly
The price is $113 total per night from Jul 19 to Jul 20
$113 total
Jul 19 - Jul 20
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. ...
7.8/10 Good! (4,965 reviews)
"Room was clean and the staff was helpful."

Reviewed on Jul 10, 2026

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
$111 nightly
The price is $125 total per night from Jul 15 to Jul 16
$125 total
Jul 15 - Jul 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 ...
7.6/10 Good! (1,370 reviews)
"The hotel was fine for an economical stay near the airport. Some features were worn and dated, but everything was clean. The only problem was the elevator was out of order and our room was on the fourth floor. There was another guest climbing the stairs ahead of us, an older woman with impaired mobility ..."

Reviewed on Jul 10, 2026

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
$105 nightly
The price is $120 total per night from Jul 12 to Jul 13
$120 total
Jul 12 - Jul 13
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 (1,972 reviews)
"The restaurant was dirty, the food overcooked and the service was not very good, but the hotel staff and the shuttle drivers were excellent. I would stay there again but I would not eat at the restaurant on site."

Reviewed on Jul 10, 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
$147 nightly
The price is $171 total per night from Jul 19 to Jul 20
$171 total
Jul 19 - Jul 20
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 ...
8.6/10 Excellent! (1,350 reviews)

Families like: Indoor pool, cribs, free breakfast for the whole family, laundry

Travelers say...
"Check in was supposed to be at 4 PM, didn't get keys to our room until 7:30 PM. No compensation offered for the inconvenience. Won't be staying there again."

Reviewed on Jul 8, 2026

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
$150 nightly
The price is $171 total per night from Aug 9 to Aug 10
$171 total
Aug 9 - Aug 10
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! (1,007 reviews)
"The pillows were too soft, and did not have a restful sleep. The body wash and shampoo were also not refilled during our stay. The breakfast was mediocre and lacked flavor, and the fruit did not seem fresh. Additionally, the bedroom drawers were difficult to open and often got stuck. Overall, there ..."

Reviewed on Jul 9, 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
$266 nightly
The price is $314 total per night from Aug 10 to Aug 11
$314 total
Aug 10 - Aug 11
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 ...
9.6/10 Exceptional! (2,243 reviews)
"Very nice place to stay and the hotel receptionist was very helpful. Gave us directions to a local restaurant and even called a cab when we needed a ride to the Warf and Cruise Ship Pier."

Reviewed on Jul 9, 2026

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.

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