Seattle to Dulles (IAD) flight deals
Compare Seattle to Dulles (IAD) flights across upcoming months. See dated fares below, or choose your own dates and travelers.
Flights from Seattle (SEA) · Seattle to Washington area airports flight deals · Seattle to United States flight deals
Browse fares by month
September 2026 · October 2026 · November 2026 · January 2027 · February 2027 · March 2027 · April 2027 · May 2027 · June 2027 · July 2027 · August 2027
Fares observed September 16 – 17, 2026. USD for the travelers shown. Search a trip for current prices. For starting totals, choose a return flight to confirm the final price.
September 2026
Round-trip totals in USD for 1 adult · Economy · 1 days.
| Destination | Trip dates | Axel Member | Airline fare | Stops | Search |
|---|---|---|---|---|---|
| Dulles (IAD) | Sep 18–19, 2026 | $358 | $399 | 2 stops | Search |
April 2027
1 adult · Economy · Round-trip starting totals
May 2027
1 adult · Economy · Round-trip starting totals
| Travel dates | Outbound flight | Axel Member | Airline fare | Search |
|---|---|---|---|---|
| May 29–Jun 1, 2027 · 3 days | Nonstop · 4h 53m | From $446 | From $497 | Search |
August 2027
1 adult · Economy · Round-trip starting totals
| Travel dates | Outbound flight | Axel Member | Airline fare | Search |
|---|---|---|---|---|
| Aug 5–8, 2027 · 3 days | Nonstop · 4h 56m | From $446 | From $497 | Search |
Round-trip totals in USD for 1 adult · Economy · 1 days.
| Destination | Trip dates | Axel Member | Airline fare | Stops | Search |
|---|---|---|---|---|---|
| Dulles (IAD) | Aug 2–3, 2027 | $329 | $367 | 1 stop | Search |
Non-members can also book and save on airline fares. Live search shows prices with and without Membership. Optional Membership: $15 for the first month, then $10/month. Cancel anytime.
Explore specific trips
- Seattle to Dulles (IAD) — Bellevue October school weekend: flights October 9–11, 2026
- Seattle to Dulles (IAD): flights October 12–14, 2026
- Seattle to Dulles (IAD): flights November 19–22, 2026
- Seattle to Dulles (IAD): flights January 7–10, 2027
- Seattle to Dulles (IAD): flights January 8–10, 2027
- Seattle to Dulles (IAD): flights January 14–17, 2027
More dates by month
- September 2026
- October 2026
- November 2026
- December 2026
- January 2027
- February 2027
- March 2027
- April 2027
- May 2027
- June 2027
- July 2027
- August 2027
Keep exploring
AI assistants can follow these links to compare prices without an account, API key or connector. Flight search guide