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 $135 One Way, $238 Round Trip

Prices starting at $238 for return flights and $135 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.

Mon, Aug 10 - Thu, Aug 13
IAD
Washington
SEA
Seattle
$238 Roundtrip, found 1 day ago
$238
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Aug 10 from Washington to Seattle, returning Thu, Aug 13, priced at $238 found 1 day ago
Mon, Aug 3 - Thu, Aug 13
IAD
Washington
SEA
Seattle
$244 Roundtrip, found 1 day ago
$244
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Aug 3 from Washington to Seattle, returning Thu, Aug 13, priced at $244 found 1 day ago
Mon, Jul 13 - Mon, Jul 20
IAD
Washington
SEA
Seattle
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Jul 13 from Washington to Seattle, returning Mon, Jul 20, priced at $250 found 1 day ago
Tue, Sep 8 - Sat, Sep 19
IAD
Washington
SEA
Seattle
$252 Roundtrip, found 6 hours ago
$252
Roundtrip
found 6 hours ago
Select Bargain Flight flight, departing Tue, Sep 8 from Washington to Seattle, returning Sat, Sep 19, priced at $252 found 6 hours ago
Tue, Sep 8 - Sat, Sep 19
IAD
Washington
SEA
Seattle
$255 Roundtrip, found 6 hours ago
$255
Roundtrip
found 6 hours ago
Select United flight, departing Tue, Sep 8 from Washington to Seattle, returning Sat, Sep 19, priced at $255 found 6 hours ago

Hotel Ideas near Seattle - Tacoma Intl.

Airport Hotels near Seattle - Tacoma Intl.

DoubleTree by Hilton Seattle Airport

DoubleTree by Hilton Seattle Airport

4 out of 5
18740 International Boulevard SeaTac WA
$122 nightly
The price is $139 total per night from May 17 to May 18
$139 total
May 17 - May 18
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 ...
7.8/10 Good! (3,059 reviews)
Staff was very kind and professional. The shuttle was very confusing and hard to get to. The rooms while clean was dingy and very out of the way. Not the worst experience but can be improved.

Reviewed on May 13, 2026

DoubleTree by Hilton Seattle Airport
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 May 25 to May 26
$149 total
May 25 - May 26
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 ...
8.2/10 Very Good! (1,295 reviews)
No room service available and the food prices in the onsite restaurant are ridiculous.

Reviewed on May 11, 2026

Hilton Seattle Airport & Conference Center
Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd SeaTac WA
$133 nightly
The price is $152 total per night from May 24 to May 25
$152 total
May 24 - May 25
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! (7,962 reviews)
Super close to the airport (less than 10 mins).

Reviewed on May 14, 2026

Coast Gateway 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.

Hotels In Seattle

Mediterranean Inn

Mediterranean Inn

3 out of 5
425 Queen Anne Ave N Seattle WA
$168 nightly
The price is $199 total per night from May 26 to May 27
$199 total
May 26 - May 27
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! (5,845 reviews)
Friendly and helpful.

Reviewed on May 14, 2026

Mediterranean Inn
The Belltown Inn

The Belltown Inn

2.5 out of 5
2301 3rd Avenue Seattle WA
$126 nightly
The price is $148 total per night from May 25 to May 26
$148 total
May 25 - May 26
Total with taxes and fees
Book a stay at this business-friendly hotel in Seattle. Enjoy free WiFi, a rooftop terrace, and free bicycles on site. Our guests praise the helpful staff and ...
9.4/10 Exceptional! (4,483 reviews)
My fiancé and I stayed here for two nights before getting on a cruise. It was perfect when we arrived staff was super friendly and accommodating. Location was great easy access to the port and walkable distance to all of the highlights in Seattle! Places with super clean! I will be honest I was really ...

Reviewed on May 13, 2026

The Belltown Inn
DoubleTree by Hilton Seattle Airport

DoubleTree by Hilton Seattle Airport

4 out of 5
18740 International Boulevard SeaTac WA
$122 nightly
The price is $139 total per night from May 17 to May 18
$139 total
May 17 - May 18
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 ...
7.8/10 Good! (3,059 reviews)
Staff was very kind and professional. The shuttle was very confusing and hard to get to. The rooms while clean was dingy and very out of the way. Not the worst experience but can be improved.

Reviewed on May 13, 2026

DoubleTree by Hilton Seattle 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.

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
$75 nightly
The price is $86 total per night from May 17 to May 18
$86 total
May 17 - May 18
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 (1,980 reviews)
We arrived late for a late check in. I called ahead to let them know. When we arrived, the guy at the front desk was very nice. Answered my questions I had.

Reviewed on May 12, 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
$76 nightly
The price is $88 total per night from May 20 to May 21
$88 total
May 20 - May 21
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! (4,876 reviews)
Air conditioner didn’t work and the room was very stuffy. Room was dated and had stained carpet. Hot water barely worked in the shower and the toilet barely flushed.

Reviewed on May 14, 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
$87 nightly
The price is $98 total per night from May 18 to May 19
$98 total
May 18 - May 19
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! (1,321 reviews)
The room is little bit old and smelly.

Reviewed on May 13, 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
$76 nightly
The price is $88 total per night from May 20 to May 21
$88 total
May 20 - May 21
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! (4,876 reviews)
Air conditioner didn’t work and the room was very stuffy. Room was dated and had stained carpet. Hot water barely worked in the shower and the toilet barely flushed.

Reviewed on May 14, 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
$87 nightly
The price is $98 total per night from May 18 to May 19
$98 total
May 18 - May 19
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! (1,321 reviews)
The room is little bit old and smelly.

Reviewed on May 13, 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
$75 nightly
The price is $86 total per night from May 17 to May 18
$86 total
May 17 - May 18
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 (1,980 reviews)
We arrived late for a late check in. I called ahead to let them know. When we arrived, the guy at the front desk was very nice. Answered my questions I had.

Reviewed on May 12, 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
$155 nightly
The price is $181 total per night from May 17 to May 18
$181 total
May 17 - May 18
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! (1,250 reviews)

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

Travelers say...
Always have a good stay here. Rooms are spacious, comfortable, and clean. Room service dinning is handy. Continental breakfast is better than most.

Reviewed on May 14, 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
$123 nightly
The price is $140 total per night from May 26 to May 27
$140 total
May 26 - May 27
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)
We booked the 2Q suite with a pull out sofa. The Sofa is NOT to be slept on as it felt like I was sitting on a bunch of springs only with no support whatsoever. Called the front desk and they changed our room to another suite with equal unusable sofa bed. Also, the AC didn't properly work as we had ...

Reviewed on May 13, 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
$178 nightly
The price is $210 total per night from May 26 to May 27
$210 total
May 26 - May 27
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! (2,145 reviews)
Such a great hotel with a pretty central location to everything. Loved the staff, they were very helpful and accommodating!

Reviewed on May 13, 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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