Award flights from Washington Dulles (IAD) to Seattle (SEA)
In the last 30 days AwardTool saw award space on 9 programs for IAD→SEA. Lowest economy: 10,000 miles + $5.60 (American Airlines AAdvantage). Lowest business class: 43,600 points + $5.60 (Qantas Frequent Flyer). Lowest first class: 25,000 miles + $5.60 (American Airlines AAdvantage).
Data as of
Award prices last changed . AwardTool checks these routes daily; seats change quickly.
Washington Dulles (IAD) to Seattle (SEA) at a glance
- From
- Washington Dulles International, Washington, D.C., United States (IAD)
- To
- Seattle-Tacoma International, Seattle, Washington, United States (SEA)
- Programs with award space seen
- 9 of 9 programs tracked on this route
- Nonstop award space seen
- Yes, in economy, business class and first class, via American Airlines AAdvantage, Air Canada Aeroplan, Alaska Atmos Rewards, Avianca LifeMiles, Delta SkyMiles, Qantas Frequent Flyer, United MileagePlus, Virgin Australia Velocity and Virgin Atlantic Flying Club
- Airlines seen on these awards
- American Airlines (AA), Air Canada (AC), Alaska Airlines (AS), Delta Air Lines (DL), United Airlines (UA)
- Departures with open awards
- Oct 2026 to Sep 2027
- Observation window
- Awards observed in the last 30 days
- Destination guide
- Award flights to Seattle (SEA)
Compare programs by cabin
The lowest one-way award each program showed in each cabin, sorted by points.
Economy
| Program | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| American Airlines AAdvantageLowest observed | 10,000 pts + $5.60 | 1 stopNonstop from 12,500 pts | American Airlines (AA), Alaska Airlines (AS) | — | 314 | See dates | |
| Alaska Atmos Rewards | 12,500 pts + $5.60 | Nonstop | American Airlines (AA), Alaska Airlines (AS) | 9+ | 330 | See dates | |
| Delta SkyMiles | 14,300 pts + $5.60 | Nonstop | Delta Air Lines (DL) | 9+ | 312 | See dates | |
| United MileagePlus | 15,000 pts + $5.60 | Nonstop | United Airlines (UA) | 9+ | 318 | See dates | |
| Avianca LifeMiles | 15,000 pts + $5.60 | Nonstop | United Airlines (UA) | 9+ | 25 | See dates | |
| Air Canada Aeroplan | 17,500 pts + $32.94 | Nonstop | United Airlines (UA) | 9+ | 193 | See dates | |
| Virgin Australia Velocity | 19,000 pts + $9.53 | Nonstop | Air Canada (AC), United Airlines (UA) | 9+ | 170 | See dates | |
| Qantas Frequent Flyer | 20,700 pts + $5.60 | 1 stopNonstop from 23,000 pts | American Airlines (AA), Alaska Airlines (AS) | 2 | 292 | See dates | |
| Virgin Atlantic Flying Club | 22,000 pts + $5.60 | Nonstop | Delta Air Lines (DL) | 1 | 170 | See dates |
Business Class
| Program | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| Qantas Frequent FlyerLowest observed | 43,600 pts + $5.60 | 1 stopNonstop from 46,000 pts | American Airlines (AA), Alaska Airlines (AS) | 2 | 302 | See dates | |
| Virgin Australia Velocity | 58,000 pts + $89.21 | 2 stops | Air Canada (AC) | 1 | 3 | See dates |
Not seen in business class: American Airlines AAdvantage, Air Canada Aeroplan, Alaska Atmos Rewards, Avianca LifeMiles, Delta SkyMiles, United MileagePlus and Virgin Atlantic Flying Club.
First Class
| Program | Points + taxes | Stops | Airlines seen | Seats | Dates seen | Newest observation | |
|---|---|---|---|---|---|---|---|
| American Airlines AAdvantageLowest observed | 25,000 pts + $5.60 | Nonstop | American Airlines (AA), Alaska Airlines (AS) | 1 | 314 | See dates | |
| Alaska Atmos Rewards | 30,000 pts + $5.60 | Nonstop | American Airlines (AA), Alaska Airlines (AS) | 1 | 330 | See dates | |
| United MileagePlus | 30,000 pts + $5.60 | 1 stopNonstop from 60,800 pts · Mixed cabin | United Airlines (UA) | 3 | 318 | See dates | |
| Air Canada Aeroplan | 30,000 pts + $32.96 | 1 stopMixed cabin | United Airlines (UA) | 1 | 10 | See dates | |
| Virgin Australia Velocity | 37,500 pts + $13.77 | 1 stop | United Airlines (UA) | 1 | 1 | See dates | |
| Delta SkyMiles | 52,800 pts + $5.60 | Nonstop | Delta Air Lines (DL) | 3 | 312 | See dates | |
| Virgin Atlantic Flying Club | 101,000 pts + $11.20 | 1 stop | Delta Air Lines (DL) | 1 | 14 | See dates |
Not seen in first class: Avianca LifeMiles and Qantas Frequent Flyer.
Premium economy: not seen in the last 30 days.
Not seen means AwardTool hasn't observed this cabin on this route in the last 30 days. It doesn't mean the airline has no seats. Dates seen counts departure dates with an open award in that cabin at any price; newest observation is the latest time AwardTool saw one of them. Seats is the count the program reported when we observed it; some programs report at most 9.
Observed award examples
| Departure | Cabin | Program | Points + taxes | Seats | Stops | Observed (UTC) | |
|---|---|---|---|---|---|---|---|
| Economy | American Airlines AAdvantage | 10,000 pts + $5.60 | — | 1 stop | Check this date | ||
| Economy | Alaska Atmos Rewards | 12,500 pts + $5.60 | 9+ | Nonstop | Check this date | ||
| Business | Qantas Frequent Flyer | 43,600 pts + $5.60 | 2 | 1 stop | Check this date | ||
| First | American Airlines AAdvantage | 25,000 pts + $5.60 | 3 | 1 stop | Check this date | ||
| First | Air Canada Aeroplan | 30,000 pts + $32.98 | 3 | 1 stop | Check this date | ||
| First | United MileagePlus | 30,000 pts + $5.60 | 3 | 1 stop | Check this date | ||
| First | Virgin Australia Velocity | 37,500 pts + $13.77 | 1 | 1 stop | Check this date | ||
| First | Delta SkyMiles | 52,800 pts + $5.60 | 3 | Nonstop | Check this date |
Prices are one-way per traveler: the program's points or miles plus taxes and carrier fees in USD, as AwardTool observed them at the time shown. Award space changes constantly. A seat we saw may be gone, and space we haven't seen may exist. Always confirm with a live search before transferring points; most transfers can't be reversed.
Nonstop award space
- Economy: nonstop from 12,500 points via Alaska Atmos Rewards, which showed nonstop space on 330 dates (9 programs had nonstop space).
- Business class: nonstop from 46,000 points via Qantas Frequent Flyer, which showed nonstop space on 21 dates.
- First class: nonstop from 25,000 miles via American Airlines AAdvantage, which showed nonstop space on 309 dates (4 programs had nonstop space).
Best months to fly from Washington Dulles (IAD) to Seattle (SEA) on points
| Month | Economy | Business | First |
|---|---|---|---|
| 11,000 · AAdvantage (16 dates) | 43,600 · Qantas (16 dates) | 25,000 · AAdvantage (16 dates) | |
| 10,000 · AAdvantage (29 dates) | 43,600 · Qantas (27 dates) | 25,000 · AAdvantage (29 dates) | |
| 10,000 · AAdvantage (31 dates) | 43,600 · Qantas (25 dates) | 25,000 · AAdvantage (31 dates) | |
| 10,000 · AAdvantage (23 dates) | 43,600 · Qantas (30 dates) | 25,000 · AAdvantage (23 dates) | |
| 10,000 · AAdvantage (28 dates) | 43,600 · Qantas (28 dates) | 25,000 · AAdvantage (28 dates) | |
| 10,000 · AAdvantage (30 dates) | 43,600 · Qantas (29 dates) | 25,000 · AAdvantage (30 dates) | |
| 10,000 · AAdvantage (30 dates) | 43,600 · Qantas (26 dates) | 25,000 · AAdvantage (30 dates) | |
| 10,000 · AAdvantage (31 dates) | 43,600 · Qantas (23 dates) | 29,500 · AAdvantage (31 dates) | |
| 10,000 · AAdvantage (30 dates) | 43,600 · Qantas (30 dates) | 25,000 · AAdvantage (30 dates) | |
| 10,000 · AAdvantage (31 dates) | 43,600 · Qantas (29 dates) | 25,000 · AAdvantage (31 dates) | |
| 10,000 · AAdvantage (28 dates) | 43,600 · Qantas (31 dates) | 25,000 · AAdvantage (28 dates) | |
| 10,000 · AAdvantage (7 dates) | 43,600 · Qantas (8 dates) | 25,000 · AAdvantage (7 dates) |
Points that transfer to these programs
| Program | Amex | Bilt | Capital One | Chase | Citi | Wells Fargo |
|---|---|---|---|---|---|---|
| Air Canada Aeroplan | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | — | — |
| Alaska Atmos Rewards | — | 1:1 · ~1 day | — | — | — | — |
| American Airlines AAdvantage | — | — | — | — | 1:1 · Instant | — |
| Avianca LifeMiles | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | — | 1:1 · Instant | 1:1 · Instant |
| Delta SkyMiles | 1:1 · Instant | — | — | — | — | — |
| Qantas Frequent Flyer | 1:1 · Instant | — | 1:1 · ~1-2 days | — | 1:1 · Instant | — |
| United MileagePlus | — | 1:1 · Instant | — | 1:1 · Instant | — | — |
| Virgin Atlantic Flying Club | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant | 1:1 · Instant |
Check current transfer bonuses. Most transfers can't be reversed. No bank transfers to Virgin Australia Velocity.
Search, calendar and alerts from Washington Dulles (IAD) to Seattle (SEA)
Route calendar
Every departure date with open award seats on IAD→SEA for Alaska Atmos Rewards and the other programs: a limited window on the free plan and 365 days with Pro.
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Search Washington Dulles (IAD) to Seattle (SEA)Questions about award flights from Washington Dulles (IAD) to Seattle (SEA)
What's the lowest Washington Dulles (IAD) to Seattle (SEA) award price AwardTool has seen?
In economy, 10,000 miles + $5.60 with American Airlines AAdvantage. American Airlines AAdvantage showed economy award space on 314 departure dates (newest observation Oct 16, 2026, 04:43 UTC). In business class, 43,600 points + $5.60 with Qantas Frequent Flyer. Qantas Frequent Flyer showed business-class award space on 302 departure dates (newest observation Oct 16, 2026, 03:46 UTC). Search live before transferring points.
Which loyalty programs had award space from Washington Dulles (IAD) to Seattle (SEA)?
9 programs in the last 30 days: American Airlines AAdvantage (economy 314 dates, first class 314 dates); Air Canada Aeroplan (economy 193 dates, first class 10 dates); Alaska Atmos Rewards (economy 330 dates, first class 330 dates); Avianca LifeMiles (economy 25 dates); Delta SkyMiles (economy 312 dates, first class 312 dates); Qantas Frequent Flyer (economy 292 dates, business class 302 dates); United MileagePlus (economy 318 dates, first class 318 dates); Virgin Australia Velocity (economy 170 dates, business class 3 dates, first class 1 date) and 1 more. Dates count departure dates with an open award.
Is there nonstop award space from Washington Dulles (IAD) to Seattle (SEA)?
Yes. AwardTool observed nonstop award space in economy, business class and first class, bookable via American Airlines AAdvantage, Air Canada Aeroplan, Alaska Atmos Rewards, Avianca LifeMiles, Delta SkyMiles, Qantas Frequent Flyer, United MileagePlus, Virgin Australia Velocity and Virgin Atlantic Flying Club. The lowest nonstop award in economy was 12,500 points with Alaska Atmos Rewards.
Which credit card points can book awards from Washington Dulles (IAD) to Seattle (SEA)?
American Express Membership Rewards: Air Canada Aeroplan (1:1), Avianca LifeMiles (1:1), Delta SkyMiles (1:1), Qantas Frequent Flyer (1:1), Virgin Atlantic Flying Club (1:1). Bilt Rewards: Air Canada Aeroplan (1:1), Alaska Atmos Rewards (1:1), Avianca LifeMiles (1:1), United MileagePlus (1:1), Virgin Atlantic Flying Club (1:1). Capital One Miles: Air Canada Aeroplan (1:1), Avianca LifeMiles (1:1), Qantas Frequent Flyer (1:1), Virgin Atlantic Flying Club (1:1). Chase Ultimate Rewards: Air Canada Aeroplan (1:1), United MileagePlus (1:1), Virgin Atlantic Flying Club (1:1). Citi ThankYou Points: American Airlines AAdvantage (1:1), Avianca LifeMiles (1:1), Qantas Frequent Flyer (1:1), Virgin Atlantic Flying Club (1:1). Wells Fargo Rewards: Avianca LifeMiles (1:1), Virgin Atlantic Flying Club (1:1). Ratios come from AwardTool's transfer partner list; check current bonuses first.
Which months had the lowest award prices from Washington Dulles (IAD) to Seattle (SEA)?
Counting only month prices from programs with award space on 2 or more dates that month, and leaving out unusually low outliers: in economy, the lowest award was for Dec 2026 departures, 10,000 miles with AAdvantage (31 dates); in business class, the lowest award was for Aug 2027 departures, 43,600 points with Qantas (31 dates). The month table shows every lowest price, including those. Based on dates we observed, not a forecast.