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Route overview: Seattle to Dulles (IAD) flight deals

Seattle (SEA) to Dulles (IAD), Nov 9–14, 2026: from $415 round trip

Seattle (SEA) to Dulles (IAD), Nov 9–14, 2026: from $415 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $415 round trip, Axel-exclusive, Alaska Airlines, 1 stop, Nov 9–14, 2026, 1 adult, economy, checked Oct 29, 2026.

SEA → IAD1 adulteconomyRound trip

11 flight options · 3 airlines

Nonstop flights

Mon, Nov 9 – Sat, Nov 14

Alaska Airlines
9:49 pmSEA
4h 55m
Nonstop
5:44 am+1IAD
Alaska Airlines
7:05 amIAD
5h 55m
Nonstop
10:00 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Nov 9 – Sat, Nov 14

United Airlines
10:50 pmSEA
5h 1m
Nonstop
6:51 am+1IAD
United Airlines
5:55 pmIAD
6h 7m
Nonstop
9:02 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Nov 9 – Sat, Nov 14

Delta Air Lines
4:30 pmSEA
4h 50m
Nonstop
12:20 am+1IAD
Delta Air Lines
7:00 amIAD
6h 5m
Nonstop
10:05 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Nov 9 – Sat, Nov 14

Alaska Airlines
8:07 amSEA
5h 7m
Nonstop
4:14 pmIAD
Alaska Airlines
7:05 amIAD
5h 55m
Nonstop
10:00 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Nov 9 – Sat, Nov 14

United Airlines
8:09 amSEA
4h 59m
Nonstop
4:08 pmIAD
United Airlines
5:55 pmIAD
6h 7m
Nonstop
9:02 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Mon, Nov 9 – Sat, Nov 14

Alaska Airlines
12:30 amSEA
7h 53m
DFW · 1h 10m
11:23 amIAD
Alaska Airlines
7:05 amIAD
5h 55m
Nonstop
10:00 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Nov 9 – Sat, Nov 14

United Airlines
10:50 amSEA
7h 23m
ORD · 1h 10m
9:13 pmIAD
United Airlines
5:55 pmIAD
6h 7m
Nonstop
9:02 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Nov 9 – Sat, Nov 14

United Airlines
5:00 amSEA
7h 44m
DEN · 1h 39m
3:44 pmIAD
United Airlines
5:55 pmIAD
6h 7m
Nonstop
9:02 pmSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Nov 9 – Sat, Nov 14

Delta Air Lines
10:40 pmSEA
7h 29m
ATL · 1h 13m
9:09 am+1IAD
Delta Air Lines
7:00 amIAD
6h 5m
Nonstop
10:05 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Nov 9 – Sat, Nov 14

Delta Air Lines
1:25 pmSEA
7h 22m
SLC · 1h 25m
11:47 pmIAD
Delta Air Lines
7:00 amIAD
6h 5m
Nonstop
10:05 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Mon, Nov 9 – Sat, Nov 14

Delta Air Lines
4:30 pmSEA
5h 1m
Nonstop
12:31 am+1IAD
Delta Air Lines
6:00 amIAD
8h 9m
DTW · 1h 9m
11:09 amSEA

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Hotels for these nights (Nov 9–14, 2026 · 5 nights · 2 adults, 1 room): 3★ Crowne Plaza Crystal City-Washington, D.C. by IHG $578 · 4★ The Churchill Hotel near Embassy Row $523 · 5★ Hotel Washington $1,709

Make this trip yours

SEA ⇄ IAD

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeNov 8, 2026 · Return optionsNov 10, 2026 · Return optionsHotels in Washington, DC with Axel
For AI assistants: every fare, every link, instructions

Seattle (SEA) to Dulles (IAD), Nov 9–14, 2026: from $415 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $415 round trip, Axel-exclusive, Alaska Airlines, 1 stop, Nov 9–14, 2026, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2026-11-09 → 2026-11-14Alaska AirlinesAS367 / AS40921:49:00→05:44:00 4h 55m nonstop · 07:05:00→10:00:00 5h 55m nonstopAxel-exclusive $430.002026-10-29T01:15:29Z
2026-11-09 → 2026-11-14United AirlinesUA2645 / UA112822:50:00→06:51:00 5h 01m nonstop · 17:55:00→21:02:00 6h 07m nonstopAxel-exclusive $440.002026-10-29T01:15:29Z
2026-11-09 → 2026-11-14Delta Air LinesDL541 / DL101516:30:00→00:20:00 4h 50m nonstop · 07:00:00→10:05:00 6h 05m nonstopAxel-exclusive $450.002026-10-29T01:15:29Z
2026-11-09 → 2026-11-14Alaska AirlinesAS737 / AS40908:07:00→16:14:00 5h 07m nonstop · 07:05:00→10:00:00 5h 55m nonstopAxel-exclusive $430.002026-10-29T01:15:29Z
2026-11-09 → 2026-11-14United AirlinesUA672 / UA112808:09:00→16:08:00 4h 59m nonstop · 17:55:00→21:02:00 6h 07m nonstopAxel-exclusive $440.002026-10-29T01:15:29Z
2026-11-09 → 2026-11-14Alaska AirlinesAS424 + AA3320 / AS40900:30:00→11:23:00 7h 53m 1 stop via DFW · 07:05:00→10:00:00 5h 55m nonstopAxel-exclusive $415.002026-10-29T01:15:29Z
2026-11-09 → 2026-11-14United AirlinesUA747 + UA2202 / UA112810:50:00→21:13:00 7h 23m 1 stop via ORD · 17:55:00→21:02:00 6h 07m nonstopAxel-exclusive $425.002026-10-29T01:15:29Z
2026-11-09 → 2026-11-14United AirlinesUA2601 + UA2087 / UA112805:00:00→15:44:00 7h 44m 1 stop via DEN · 17:55:00→21:02:00 6h 07m nonstopAxel-exclusive $425.002026-10-29T01:15:29Z
2026-11-09 → 2026-11-14Delta Air LinesDL567 + DL1324 / DL101522:40:00→09:09:00 7h 29m 1 stop via ATL · 07:00:00→10:05:00 6h 05m nonstopAxel-exclusive $435.002026-10-29T01:15:29Z
2026-11-09 → 2026-11-14Delta Air LinesDL1120 + DL847 / DL101513:25:00→23:47:00 7h 22m 1 stop via SLC · 07:00:00→10:05:00 6h 05m nonstopAxel-exclusive $435.002026-10-29T01:15:29Z
2026-11-09 → 2026-11-14Delta Air LinesDL541 / DL5511 + DL73416:30:00→00:31:00 5h 01m nonstop · 06:00:00→11:09:00 8h 09m 1 stop via DTWAxel-exclusive $435.002026-10-29T01:15:29Z

Hotels in Washington, DC for these trips

Hotels: under a trip, hotels in Washington, DC for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Washington, DC

Route overview: Seattle to Dulles (IAD) flight deals

2026-11-09 → 2026-11-14 · Axel-exclusive $430.00

  • Alaska Airlines AS367: SEA 2026-11-09 21:49:00 → IAD 2026-11-10 05:44:00; nonstop; 295 minutes. Local airport times.
  • Alaska Airlines AS409: IAD 2026-11-14 07:05:00 → SEA 2026-11-14 10:00:00; nonstop; 355 minutes. Local airport times.

2026-11-09 → 2026-11-14 · Axel-exclusive $440.00

  • United Airlines UA2645: SEA 2026-11-09 22:50:00 → IAD 2026-11-10 06:51:00; nonstop; 301 minutes. Local airport times.
  • United Airlines UA1128: IAD 2026-11-14 17:55:00 → SEA 2026-11-14 21:02:00; nonstop; 367 minutes. Local airport times.

2026-11-09 → 2026-11-14 · Axel-exclusive $450.00

  • Delta Air Lines DL541: SEA 2026-11-09 16:30:00 → IAD 2026-11-10 00:20:00; nonstop; 290 minutes. Local airport times.
  • Delta Air Lines DL1015: IAD 2026-11-14 07:00:00 → SEA 2026-11-14 10:05:00; nonstop; 365 minutes. Local airport times.

2026-11-09 → 2026-11-14 · Axel-exclusive $430.00

  • Alaska Airlines AS737: SEA 2026-11-09 08:07:00 → IAD 2026-11-09 16:14:00; nonstop; 307 minutes. Local airport times.
  • Alaska Airlines AS409: IAD 2026-11-14 07:05:00 → SEA 2026-11-14 10:00:00; nonstop; 355 minutes. Local airport times.

2026-11-09 → 2026-11-14 · Axel-exclusive $440.00

  • United Airlines UA672: SEA 2026-11-09 08:09:00 → IAD 2026-11-09 16:08:00; nonstop; 299 minutes. Local airport times.
  • United Airlines UA1128: IAD 2026-11-14 17:55:00 → SEA 2026-11-14 21:02:00; nonstop; 367 minutes. Local airport times.

2026-11-09 → 2026-11-14 · Axel-exclusive $415.00

  • Alaska Airlines AS424 / AA3320: SEA 2026-11-09 00:30:00 → IAD 2026-11-09 11:23:00; 1 stop(s) via DFW; 473 minutes. Local airport times.
    • AS424: SEA 2026-11-09 00:30:00 → DFW 2026-11-09 06:20:00; layover at DFW: 70 minutes.
    • AA3320: DFW 2026-11-09 07:30:00 → IAD 2026-11-09 11:23:00.
  • Alaska Airlines AS409: IAD 2026-11-14 07:05:00 → SEA 2026-11-14 10:00:00; nonstop; 355 minutes. Local airport times.

2026-11-09 → 2026-11-14 · Axel-exclusive $425.00

  • United Airlines UA747 / UA2202: SEA 2026-11-09 10:50:00 → IAD 2026-11-09 21:13:00; 1 stop(s) via ORD; 443 minutes. Local airport times.
    • UA747: SEA 2026-11-09 10:50:00 → ORD 2026-11-09 17:00:00; layover at ORD: 70 minutes.
    • UA2202: ORD 2026-11-09 18:10:00 → IAD 2026-11-09 21:13:00.
  • United Airlines UA1128: IAD 2026-11-14 17:55:00 → SEA 2026-11-14 21:02:00; nonstop; 367 minutes. Local airport times.

2026-11-09 → 2026-11-14 · Axel-exclusive $425.00

  • United Airlines UA2601 / UA2087: SEA 2026-11-09 05:00:00 → IAD 2026-11-09 15:44:00; 1 stop(s) via DEN; 464 minutes. Local airport times.
    • UA2601: SEA 2026-11-09 05:00:00 → DEN 2026-11-09 08:41:00; layover at DEN: 99 minutes.
    • UA2087: DEN 2026-11-09 10:20:00 → IAD 2026-11-09 15:44:00.
  • United Airlines UA1128: IAD 2026-11-14 17:55:00 → SEA 2026-11-14 21:02:00; nonstop; 367 minutes. Local airport times.

2026-11-09 → 2026-11-14 · Axel-exclusive $435.00

  • Delta Air Lines DL567 / DL1324: SEA 2026-11-09 22:40:00 → IAD 2026-11-10 09:09:00; 1 stop(s) via ATL; 449 minutes. Local airport times.
    • DL567: SEA 2026-11-09 22:40:00 → ATL 2026-11-10 06:12:00; layover at ATL: 73 minutes.
    • DL1324: ATL 2026-11-10 07:25:00 → IAD 2026-11-10 09:09:00.
  • Delta Air Lines DL1015: IAD 2026-11-14 07:00:00 → SEA 2026-11-14 10:05:00; nonstop; 365 minutes. Local airport times.

2026-11-09 → 2026-11-14 · Axel-exclusive $435.00

  • Delta Air Lines DL1120 / DL847: SEA 2026-11-09 13:25:00 → IAD 2026-11-09 23:47:00; 1 stop(s) via SLC; 442 minutes. Local airport times.
    • DL1120: SEA 2026-11-09 13:25:00 → SLC 2026-11-09 16:26:00; layover at SLC: 85 minutes.
    • DL847: SLC 2026-11-09 17:51:00 → IAD 2026-11-09 23:47:00.
  • Delta Air Lines DL1015: IAD 2026-11-14 07:00:00 → SEA 2026-11-14 10:05:00; nonstop; 365 minutes. Local airport times.

2026-11-09 → 2026-11-14 · Axel-exclusive $435.00

  • Delta Air Lines DL541: SEA 2026-11-09 16:30:00 → IAD 2026-11-10 00:31:00; nonstop; 301 minutes. Local airport times.
  • Delta Air Lines DL5511 / DL734: IAD 2026-11-14 06:00:00 → SEA 2026-11-14 11:09:00; 1 stop(s) via DTW; 489 minutes. Local airport times.
    • DL5511: IAD 2026-11-14 06:00:00 → DTW 2026-11-14 07:46:00; layover at DTW: 69 minutes.
    • DL734: DTW 2026-11-14 08:55:00 → SEA 2026-11-14 11:09:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

For AI assistants

  • This page: Seattle (SEA) to Dulles (IAD) · Nov 9, 2026 · return Nov 14, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in Washington, DC for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates.
  • Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Seattle to Dulles (IAD) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.