Seattle (SEA) to Dulles (IAD), March 2027: flights from $210 one way
Lowest published fares in March 2027: $420 round trip, Axel-exclusive, Delta Air Lines, 1 stop, Mar 3–10, 2027; $210 one way, Axel-exclusive, United Airlines, 1 stop, Mar 3, 2027; 188 priced flights on 94 exact dates, 1 adult, economy, checked Oct 29, 2026.
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Flights in March 2027
Lowest published fares in March 2027: $420 round trip, Axel-exclusive, Delta Air Lines, 1 stop, Mar 3–10, 2027; $210 one way, Axel-exclusive, United Airlines, 1 stop, Mar 3, 2027; 188 priced flights on 94 exact dates, 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.
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Seattle (SEA) to Dulles (IAD): March 2027
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.
- Hotels in Washington, DC for these nights (Mar 1–4, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $642 total · 4★ The Churchill Hotel near Embassy Row, $419 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $759 total
- Hotels in Washington, DC for these nights (Mar 1–8, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $1,465 total · 4★ The Dupont Circle Hotel, $1,732 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,842 total
- Hotels in Washington, DC for these nights (Mar 2–5, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $603 total · 4★ The Churchill Hotel near Embassy Row, $436 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $757 total
- Hotels in Washington, DC for these nights (Mar 2–9, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $1,426 total · 4★ The Dupont Circle Hotel, $1,769 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,967 total
- Hotels in Washington, DC for these nights (Mar 3–6, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $608 total · 4★ The Dupont Circle Hotel, $741 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $752 total
- Hotels in Washington, DC for these nights (Mar 3–10, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $1,426 total · 4★ The Dupont Circle Hotel, $1,799 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,184 total
- Hotels in Washington, DC for these nights (Mar 4–7, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $501 total · 4★ The Dupont Circle Hotel, $597 total · 5★ Hotel Washington, $731 total
- Hotels in Washington, DC for these nights (Mar 4–11, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,458 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,782 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,350 total
- Hotels in Washington, DC for these nights (Mar 5–8, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $532 total · 4★ The Dupont Circle Hotel, $572 total · 5★ Hotel Washington, $696 total
- Hotels in Washington, DC for these nights (Mar 5–12, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,464 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,781 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,352 total
- Hotels in Washington, DC for these nights (Mar 6–9, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $610 total · 4★ The Dupont Circle Hotel, $695 total · 5★ Hotel Washington, $937 total
- Hotels in Washington, DC for these nights (Mar 6–13, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,476 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,776 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,356 total
- Hotels in Washington, DC for these nights (Mar 7–10, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $603 total · 4★ The LINE Hotel DC, $761 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,179 total
- Hotels in Washington, DC for these nights (Mar 7–14, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $1,485 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,783 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,351 total
- Hotels in Washington, DC for these nights (Mar 8–11, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $687 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $815 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,267 total
- Hotels in Washington, DC for these nights (Mar 8–15, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $1,485 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,762 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,263 total
- Hotels in Washington, DC for these nights (Mar 9–12, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $687 total · 4★ The Churchill Hotel near Embassy Row, $361 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,142 total
- Hotels in Washington, DC for these nights (Mar 9–16, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $1,485 total · 4★ The Churchill Hotel near Embassy Row, $794 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,129 total
- Hotels in Washington, DC for these nights (Mar 10–13, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $607 total · 4★ The Churchill Hotel near Embassy Row, $319 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $924 total
- Hotels in Washington, DC for these nights (Mar 10–17, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,492 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,770 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,910 total
- Hotels in Washington, DC for these nights (Mar 11–14, 2027 · 3 nights · 2 adults, 1 room): 3★ Hilton Garden Inn Arlington/Courthouse Plaza, $551 total · 4★ The Churchill Hotel near Embassy Row, $298 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $753 total
- Hotels in Washington, DC for these nights (Mar 11–18, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,470 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,816 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,739 total
- Hotels in Washington, DC for these nights (Mar 12–15, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $579 total · 4★ The Churchill Hotel near Embassy Row, $298 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $744 total
- Hotels in Washington, DC for these nights (Mar 12–19, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,479 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,788 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,741 total
- Hotels in Washington, DC for these nights (Mar 13–16, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $597 total · 4★ The Churchill Hotel near Embassy Row, $343 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $734 total
- Hotels in Washington, DC for these nights (Mar 13–20, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $1,469 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,797 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,741 total
- Hotels in Washington, DC for these nights (Mar 14–17, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $684 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $784 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $738 total
- Hotels in Washington, DC for these nights (Mar 14–21, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $1,460 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,809 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,747 total
- Hotels in Washington, DC for these nights (Mar 15–18, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $684 total · 4★ Coda on Half, a Placemakr Experience - Navy Yard, $812 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $743 total
- Hotels in Washington, DC for these nights (Mar 15–22, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,463 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,822 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,757 total
- Hotels in Washington, DC for these nights (Mar 16–19, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $658 total · 4★ Coda on Half, a Placemakr Experience - Navy Yard, $797 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $754 total
- Hotels in Washington, DC for these nights (Mar 16–23, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,463 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,816 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,759 total
- Hotels in Washington, DC for these nights (Mar 17–20, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $590 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $788 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $755 total
- Hotels in Washington, DC for these nights (Mar 17–24, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,523 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,814 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,759 total
- Hotels in Washington, DC for these nights (Mar 18–21, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $554 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $718 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $761 total
- Hotels in Washington, DC for these nights (Mar 18–25, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,535 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,795 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,759 total
- Hotels in Washington, DC for these nights (Mar 19–22, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $563 total · 4★ The Dupont Circle Hotel, $699 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $760 total
- Hotels in Washington, DC for these nights (Mar 19–26, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,539 total · 4★ The Dupont Circle Hotel, $1,754 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,748 total
- Hotels in Washington, DC for these nights (Mar 20–23, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $624 total · 4★ The Dupont Circle Hotel, $739 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $752 total
- Hotels in Washington, DC for these nights (Mar 20–27, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,542 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,750 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,747 total
- Hotels in Washington, DC for these nights (Mar 21–24, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $744 total · 4★ The Dupont Circle Hotel, $778 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $750 total
- Hotels in Washington, DC for these nights (Mar 21–28, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,546 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,712 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,745 total
- Hotels in Washington, DC for these nights (Mar 22–25, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $774 total · 4★ The Dupont Circle Hotel, $816 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $745 total
- Hotels in Washington, DC for these nights (Mar 22–29, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,534 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,688 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,720 total
- Hotels in Washington, DC for these nights (Mar 23–26, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $734 total · 4★ The Dupont Circle Hotel, $779 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $743 total
- Hotels in Washington, DC for these nights (Mar 23–30, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,522 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,660 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,720 total
- Hotels in Washington, DC for these nights (Mar 24–27, 2027 · 3 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $623 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $724 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $743 total
- Hotels in Washington, DC for these nights (Mar 24–31, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,463 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,628 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,720 total
- Hotels in Washington, DC for these nights (Mar 25–28, 2027 · 3 nights · 2 adults, 1 room): 3★ Courtyard by Marriott Arlington Crystal City/Reagan National, $482 total · 4★ The Churchill Hotel near Embassy Row, $290 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $747 total
- Hotels in Washington, DC for these nights (Mar 25–29, 2027 · 4 nights · 2 adults, 1 room): 3★ Courtyard by Marriott Arlington Crystal City/Reagan National, $638 total · 4★ The Churchill Hotel near Embassy Row, $384 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $975 total
- Hotels in Washington, DC for these nights (Mar 25 – Apr 1, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,472 total · 4★ Washington Hilton, $1,562 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,804 total
- Hotels in Washington, DC for these nights (Mar 26–29, 2027 · 3 nights · 2 adults, 1 room): 3★ Courtyard by Marriott Arlington Crystal City/Reagan National, $473 total · 4★ The Churchill Hotel near Embassy Row, $279 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $732 total
- Hotels in Washington, DC for these nights (Mar 26 – Apr 2, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,468 total · 4★ Washington Hilton, $1,573 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,885 total
- Hotels in Washington, DC for these nights (Mar 27–30, 2027 · 3 nights · 2 adults, 1 room): 3★ Courtyard by Marriott Arlington Crystal City/Reagan National, $521 total · 4★ Washington Hilton, $634 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $725 total
- Hotels in Washington, DC for these nights (Mar 27 – Apr 3, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,475 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,600 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $1,955 total
- Hotels in Washington, DC for these nights (Mar 28–31, 2027 · 3 nights · 2 adults, 1 room): 3★ Hilton Garden Inn Arlington/Courthouse Plaza, $559 total · 4★ The Dupont Circle Hotel, $661 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $725 total
- Hotels in Washington, DC for these nights (Mar 28 – Apr 4, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,490 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,605 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,032 total
- Hotels in Washington, DC for these nights (Mar 29 – Apr 1, 2027 · 3 nights · 2 adults, 1 room): 3★ Crowne Plaza Crystal City-Washington, D.C. by IHG, $705 total · 4★ The Dupont Circle Hotel, $691 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $829 total
- Hotels in Washington, DC for these nights (Mar 29 – Apr 5, 2027 · 7 nights · 2 adults, 1 room): 3★ Sonesta Select Arlington Rosslyn, $1,515 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,632 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,116 total
- Hotels in Washington, DC for these nights (Mar 30 – Apr 2, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $671 total · 4★ The Dupont Circle Hotel, $687 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $908 total
- Hotels in Washington, DC for these nights (Mar 30 – Apr 6, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $1,506 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,670 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,200 total
- Hotels in Washington, DC for these nights (Mar 31 – Apr 3, 2027 · 3 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $599 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $696 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $978 total
- Hotels in Washington, DC for these nights (Mar 31 – Apr 7, 2027 · 7 nights · 2 adults, 1 room): 3★ Holiday Inn National Airport/Crystal City by IHG, $1,502 total · 4★ The Royal Sonesta Washington DC Dupont Circle, $1,747 total · 5★ The Morrow Washington Dc, Curio Collection By Hilton, $2,271 total
Route overview: Seattle to Dulles (IAD) flight deals
2027-03-01 · one way · Axel-exclusive $220.00
- Alaska Airlines AS367: SEA 2027-03-01 21:45:00 → IAD 2027-03-02 05:45:00; nonstop; 300 minutes. Local airport times.
2027-03-01 · one way · Axel-exclusive $225.00
- United Airlines UA2645: SEA 2027-03-01 22:50:00 → IAD 2027-03-02 06:51:00; nonstop; 301 minutes. Local airport times.
2027-03-01 → 2027-03-04 · Axel-exclusive $430.00
- Alaska Airlines AS367: SEA 2027-03-01 21:45:00 → IAD 2027-03-02 05:45:00; nonstop; 300 minutes. Local airport times.
- Alaska Airlines AS409: IAD 2027-03-04 07:05:00 → SEA 2027-03-04 10:00:00; nonstop; 355 minutes. Local airport times.
2027-03-01 → 2027-03-04 · Axel-exclusive $450.00
- Delta Air Lines DL541: SEA 2027-03-01 16:30:00 → IAD 2027-03-02 00:31:00; nonstop; 301 minutes. Local airport times.
- Delta Air Lines DL1015: IAD 2027-03-04 07:00:00 → SEA 2027-03-04 10:10:00; nonstop; 370 minutes. Local airport times.
2027-03-04 → 2027-03-07 · Axel-exclusive $430.00
- Alaska Airlines AS737: SEA 2027-03-04 08:30:00 → IAD 2027-03-04 16:28:00; nonstop; 298 minutes. Local airport times.
- Alaska Airlines AS737: IAD 2027-03-07 17:31:00 → SEA 2027-03-07 20:32:00; nonstop; 361 minutes. Local airport times.
2027-03-04 → 2027-03-07 · Axel-exclusive $440.00
- United Airlines UA1348: SEA 2027-03-04 08:09:00 → IAD 2027-03-04 16:08:00; nonstop; 299 minutes. Local airport times.
- United Airlines UA1128: IAD 2027-03-07 17:55:00 → SEA 2027-03-07 21:02:00; nonstop; 367 minutes. Local airport times.
2027-03-07 → 2027-03-10 · Axel-exclusive $430.00
- Alaska Airlines AS737: SEA 2027-03-07 08:30:00 → IAD 2027-03-07 16:28:00; nonstop; 298 minutes. Local airport times.
- Alaska Airlines AS737: IAD 2027-03-10 17:31:00 → SEA 2027-03-10 20:32:00; nonstop; 361 minutes. Local airport times.
2027-03-07 → 2027-03-10 · Axel-exclusive $440.00
- United Airlines UA672: SEA 2027-03-07 08:09:00 → IAD 2027-03-07 16:08:00; nonstop; 299 minutes. Local airport times.
- United Airlines UA1128: IAD 2027-03-10 17:55:00 → SEA 2027-03-10 21:02:00; nonstop; 367 minutes. Local airport times.
2027-03-10 → 2027-03-13 · Axel-exclusive $430.00
- Alaska Airlines AS737: SEA 2027-03-10 08:15:00 → IAD 2027-03-10 16:15:00; nonstop; 300 minutes. Local airport times.
- Alaska Airlines AS737: IAD 2027-03-13 17:31:00 → SEA 2027-03-13 20:32:00; nonstop; 361 minutes. Local airport times.
2027-03-10 → 2027-03-13 · Axel-exclusive $435.00
- Delta Air Lines DL812 / DL5413: SEA 2027-03-10 06:00:00 → IAD 2027-03-10 16:18:00; 1 stop(s) via DTW; 438 minutes. Local airport times.
- DL812: SEA 2027-03-10 06:00:00 → DTW 2027-03-10 13:12:00; layover at DTW: 93 minutes.
- DL5413: DTW 2027-03-10 14:45:00 → IAD 2027-03-10 16:18:00.
- Delta Air Lines DL1015: IAD 2027-03-13 07:00:00 → SEA 2027-03-13 10:05:00; nonstop; 365 minutes. Local airport times.
2027-03-13 → 2027-03-16 · Axel-exclusive $425.00
- United Airlines UA2601 / UA2087: SEA 2027-03-13 05:00:00 → IAD 2027-03-13 15:44:00; 1 stop(s) via DEN; 464 minutes. Local airport times.
- UA2601: SEA 2027-03-13 05:00:00 → DEN 2027-03-13 08:41:00; layover at DEN: 99 minutes.
- UA2087: DEN 2027-03-13 10:20:00 → IAD 2027-03-13 15:44:00.
- United Airlines UA1128: IAD 2027-03-16 17:55:00 → SEA 2027-03-16 21:02:00; nonstop; 367 minutes. Local airport times.
2027-03-13 → 2027-03-16 · Axel-exclusive $430.00
- Alaska Airlines AS737: SEA 2027-03-13 08:30:00 → IAD 2027-03-13 16:28:00; nonstop; 298 minutes. Local airport times.
- Alaska Airlines AS737: IAD 2027-03-16 17:31:00 → SEA 2027-03-16 20:32:00; nonstop; 361 minutes. Local airport times.
2027-03-16 → 2027-03-23 · Axel-exclusive $440.00
- United Airlines UA2645: SEA 2027-03-16 22:50:00 → IAD 2027-03-17 06:51:00; nonstop; 301 minutes. Local airport times.
- United Airlines UA1128: IAD 2027-03-23 17:55:00 → SEA 2027-03-23 21:02:00; nonstop; 367 minutes. Local airport times.
2027-03-16 → 2027-03-23 · Axel-exclusive $450.00
- Delta Air Lines DL541: SEA 2027-03-16 16:30:00 → IAD 2027-03-17 00:31:00; nonstop; 301 minutes. Local airport times.
- Delta Air Lines DL1015: IAD 2027-03-23 07:00:00 → SEA 2027-03-23 10:10:00; nonstop; 370 minutes. Local airport times.
2027-03-19 → 2027-03-26 · Axel-exclusive $455.75
- United Airlines UA2645: SEA 2027-03-19 22:50:00 → IAD 2027-03-20 06:51:00; nonstop; 301 minutes. Local airport times.
- United Airlines UA565 / UA2099: IAD 2027-03-26 06:10:00 → SEA 2027-03-26 12:19:00; 1 stop(s) via ORD; 549 minutes. Local airport times.
- UA565: IAD 2027-03-26 06:10:00 → ORD 2027-03-26 07:32:00; layover at ORD: 113 minutes.
- UA2099: ORD 2027-03-26 09:25:00 → SEA 2027-03-26 12:19:00.
2027-03-19 → 2027-03-26 · Axel-exclusive $462.25
- Alaska Airlines AS737: SEA 2027-03-19 08:30:00 → IAD 2027-03-19 16:28:00; nonstop; 298 minutes. Local airport times.
- Alaska Airlines AS737: IAD 2027-03-26 17:31:00 → SEA 2027-03-26 20:32:00; nonstop; 361 minutes. Local airport times.
2027-03-22 → 2027-03-29 · Axel-exclusive $525.50
- Alaska Airlines AS367: SEA 2027-03-22 21:45:00 → IAD 2027-03-23 05:45:00; nonstop; 300 minutes. Local airport times.
- Alaska Airlines AS737: IAD 2027-03-29 17:31:00 → SEA 2027-03-29 20:32:00; nonstop; 361 minutes. Local airport times.
2027-03-22 → 2027-03-29 · Axel-exclusive $536.25
- United Airlines UA2645: SEA 2027-03-22 22:50:00 → IAD 2027-03-23 06:51:00; nonstop; 301 minutes. Local airport times.
- United Airlines UA2731: IAD 2027-03-29 08:50:00 → SEA 2027-03-29 11:57:00; nonstop; 367 minutes. Local airport times.
2027-03-25 → 2027-03-29 · Axel-exclusive $557.75
- Alaska Airlines AS737: SEA 2027-03-25 08:30:00 → IAD 2027-03-25 16:28:00; nonstop; 298 minutes. Local airport times.
- Alaska Airlines AS737: IAD 2027-03-29 17:31:00 → SEA 2027-03-29 20:32:00; nonstop; 361 minutes. Local airport times.
2027-03-25 → 2027-03-29 · Axel-exclusive $569.25
- United Airlines UA1348: SEA 2027-03-25 08:09:00 → IAD 2027-03-25 16:08:00; nonstop; 299 minutes. Local airport times.
- United Airlines UA2731: IAD 2027-03-29 08:50:00 → SEA 2027-03-29 11:57:00; nonstop; 367 minutes. Local airport times.
2027-03-28 → 2027-03-31 · Axel-exclusive $580.50
- Alaska Airlines AS737: SEA 2027-03-28 08:30:00 → IAD 2027-03-28 16:28:00; nonstop; 298 minutes. Local airport times.
- Alaska Airlines AS737: IAD 2027-03-31 17:31:00 → SEA 2027-03-31 20:32:00; nonstop; 361 minutes. Local airport times.
2027-03-28 → 2027-03-31 · Axel-exclusive $591.25
- United Airlines UA672: SEA 2027-03-28 08:09:00 → IAD 2027-03-28 16:08:00; nonstop; 299 minutes. Local airport times.
- United Airlines UA1128: IAD 2027-03-31 17:55:00 → SEA 2027-03-31 21:02:00; nonstop; 367 minutes. Local airport times.
2027-03-31 → 2027-04-07 · Axel-exclusive $532.88
- Delta Air Lines DL812 / DL5413: SEA 2027-03-31 06:00:00 → IAD 2027-03-31 16:18:00; 1 stop(s) via DTW; 438 minutes. Local airport times.
- DL812: SEA 2027-03-31 06:00:00 → DTW 2027-03-31 13:12:00; layover at DTW: 93 minutes.
- DL5413: DTW 2027-03-31 14:45:00 → IAD 2027-03-31 16:18:00.
- Delta Air Lines DL5511 / DL734: IAD 2027-04-07 06:00:00 → SEA 2027-04-07 11:09:00; 1 stop(s) via DTW; 489 minutes. Local airport times.
- DL5511: IAD 2027-04-07 06:00:00 → DTW 2027-04-07 07:46:00; layover at DTW: 69 minutes.
- DL734: DTW 2027-04-07 08:55:00 → SEA 2027-04-07 11:09:00.
2027-03-31 → 2027-04-07 · Axel-exclusive $548.10
- Alaska Airlines AS737: SEA 2027-03-31 08:15:00 → IAD 2027-03-31 16:15:00; nonstop; 300 minutes. Local airport times.
- Alaska Airlines AS737: IAD 2027-04-07 17:31:00 → SEA 2027-04-07 20:32:00; nonstop; 361 minutes. Local airport times.
More dates for this route
- Nov 19, 2026 · Return options
- Nov 27, 2026 · Return options
- Dec 8, 2026 · Return options
- Dec 19, 2026 · Return options
- Dec 29, 2026 · Return options
- Jan 8, 2027 · Return options
- Jan 19, 2027 · Return options
- Jan 30, 2027 · Return options
- Feb 19, 2027 · Return options
- May 14, 2027 · Return options
- Jul 9, 2027 · Return options
- Sep 25, 2027 · Return options
- Hotels in Washington, DC with Axel
Seattle to Dulles nonstop flights, airlines and connections
Yes, Alaska, Delta and United fly it nonstop. In the 17 departure dates we searched from Nov 10 to Jul 13, a nonstop from Seattle flew on 17: Tuesdays 5 of 5, Fridays 3 of 3, Sundays 2 of 2, Mondays 2 of 2, Wednesdays 2 of 2, Thursdays 2 of 2 and Saturdays 1 of 1. The nonstops were Alaska (AS367, AS737, AS1614, AS574, AS706, AS1555), Delta (DL541) and United (UA672, UA1348, UA1400, UA2341, UA689). These are the airlines seen in the saved flights.
- Alaska: Nonstop to Dulles
- Delta: Nonstop to Dulles
- United: Nonstop to Dulles
| Departure date | Itineraries searched | Nonstop | Airlines and flights |
|---|---|---|---|
| Tue Nov 10 | 153 | yes | Alaska AS367, AS737; Delta DL541; United UA672 |
| Wed Nov 11 | 211 | yes, both ways | Alaska AS367, AS737; Delta DL541; United UA672 |
| Thu Nov 12 | 190 | yes | Alaska AS367, AS737; Delta DL541; United UA672 |
| Fri Nov 13 | 95 | yes | Alaska AS367, AS737; Delta DL541; United UA672 |
| Tue Nov 24 | 262 | yes, both ways | Alaska AS367, AS737; Delta DL541; United UA672 |
| Wed Nov 25 | 271 | yes, both ways | Alaska AS367, AS737; Delta DL541; United UA672 |
| Thu Nov 26 | 232 | yes, both ways | Alaska AS737; Delta DL541; United UA672 |
| Fri Nov 27 | 482 | yes, both ways | Alaska AS367, AS737; Delta DL541; United UA672 |
| Sat Nov 28 | 258 | yes, both ways | Alaska AS367, AS737; Delta DL541; United UA672 |
| Sun Nov 29 | 76 | yes | Alaska AS367, AS737; Delta DL541; United UA672 |
| Mon Nov 30 | 112 | yes | Alaska AS367, AS737; Delta DL541; United UA672 |
| Tue Dec 1 | 74 | yes | Alaska AS737; Delta DL541; United UA1348 |
| Tue Dec 8 | 16 | yes | Alaska AS737; Delta DL541; United UA1348 |
| Sun Mar 21 | 49 | yes | Alaska AS1614, AS574, AS706; Delta DL541; United UA1400 |
| Fri Jun 18 | 480 | yes, both ways | Alaska AS1555, AS1614, AS706; Delta DL541; United UA1400, UA2341, UA689 |
| Mon Jul 5 | 16 | yes | Alaska AS1555, AS1614, AS706; Delta DL541; United UA1400, UA2341, UA689 |
| Tue Jul 13 | 39 | yes, both ways | Alaska AS1555, AS1614, AS706; Delta DL541; United UA1400, UA2341, UA689 |
Every departure date searched for this route in the last 14 days, from every itinerary those searches returned. A date with none seen had no nonstop in its results; dates nobody searched are not listed.
Why book Seattle to Dulles flights with Axel
- Repricing is Axel's price-drop protection for flights, open to every traveler: after you book, Axel keeps watching the fare, and when it drops Axel secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of each saving; without Membership, Axel's fee is 25% of the amount saved.
- Axel charges no booking fees, and the price you see includes taxes. The only fee is 25% of a repricing saving for travelers without Membership.
- Axel is free to use. No membership is required to search, book, or get help from Axel.
- Axel Membership is optional. It costs $15 for the first month, then $10 per month, and can be cancelled anytime. Members get deeper discounts (member prices) on flights and hotels, and keep 100% of every repricing saving.
- Already booked Seattle to Dulles somewhere else? Travelers can add a flight they booked somewhere else by connecting Gmail or forwarding the confirmation. Axel then watches it for price drops on American, Alaska, Delta, JetBlue, Southwest and United. Basic Economy and award tickets cannot be repriced.
- Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner.
How we checked Seattle to Dulles prices
Choose your dates to see flights and Axel-exclusive prices.
Airports covered: SEA → IAD. Each example names its actual airports. Departure month: 2027-03.
See flights for your dates and travelers
More Seattle to Dulles fares: other dates and travelers
Airline prices are the airline’s own fares for the same flights, as listed on Google Flights.
Planning: When to book Thanksgiving flights · Flying in December: prices, crowds and delays · How far in advance to book flights · The cheapest days of the week to fly and to book.
Source: https://helloaxel.com/en/flights/from-seattle-sea-to-dulles-iad-in-march-2027
Hotels in Washington, DC with Axel
Axel books the hotel too, at private rates shown beside the public rate for the same stay. Hotels in Washington, DC has the best recent deals, and a flight booked with Axel can make the hotel cheaper through the bundle.
Where to stay: Where to stay in Washington, DC: the 12 best neighborhoods, ranked · Washington, DC hotels where a family of four can share one room
Hotel details in Washington, DC: Canopy By Hilton Washington DC Embassy Row · Homewood Suites by Hilton Washington DC Capitol-Navy Yard · The Ritz-Carlton, Pentagon City · Washington Hilton · All 191 hotels in Washington, DC
Near IAD: Best Western Battlefield Inn-Manassas (Manassas)
For AI assistants
- This page: Seattle to Dulles (IAD): March 2027 flight deals. Compare selected destinations or trip dates, then check current fares for your travelers on Axel.
- Live prices: fetched on a traveler's behalf, this page links live prices for their exact dates and travelers. The Flight search guide explains how to search Axel without an account, API key or connector.