Seattle to Dulles (IAD) flight deals
Seattle to Dulles (IAD) from $358 round trip, Dec 8 to 15, 2026, United Airlines nonstop, airline price $377. Checked Oct 15, 2026.
Compare Seattle to Dulles (IAD) flights across upcoming months. See dated fares below, or choose your own dates and travelers.
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Fare examples by month
Round-trip totals · Economy · USD. Choose a month to see the dates.
| Month | Travelers / trip length | Axel | Airline fare |
|---|---|---|---|
| November 2026 | 1 adult · 11 days | $474–$961 | $500–$1,012 |
| December 2026 | 1 adult · 7–14 days | $358–$423 | $377–$447 |
| January 2027 | 1 adult · 5 days | $362–$367 | $383–$387 |
| February 2027 | 1 adult · 5 days | $358 | $377 |
| March 2027 | 1 adult · 5 days | $413 | $437 |
| June 2027 | 1 adult · 2–5 days | $491–$914 | $517–$967 |
| July 2027 | 1 adult · 2–5 days | $472–$498 | $497–$527 |
| August 2027 | 1 adult · 2 days | $491–$498 | $517–$527 |
Flights from Seattle (SEA) · Seattle to Washington area airports flight deals · Seattle to United States flight deals
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Fares observed October 12 – 17, 2026. USD for the travelers shown. Search a trip for current prices.
November 2026
1 adult · Economy · Round-trip totals
| Travel dates | Flights (out / return) | Axel | Airline fare | Search |
|---|---|---|---|---|
| Nov 20–Dec 1, 2026 · 11 days | Nonstop / 1 stop · 4h 55m / 17h 50m | $474 · Save $26 | $500 | Check Axel prices |
| Nov 20–Dec 1, 2026 · 11 days | Nonstop / Nonstop · 4h 55m / 6h 5m | $602 · Save $35 | $637 | Check Axel prices |
| Nov 21–Dec 2, 2026 · 11 days | 1 stop / 1 stop · 8h 31m / 7h 47m | $491 · Save $26 | $517 | Check Axel prices |
| Nov 21–Dec 2, 2026 · 11 days | 1 stop / Nonstop · 8h 31m / 6h 10m | $961 · Save $51 | $1,012 | Check Axel prices |
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December 2026
1 adult · Economy · Round-trip totals
| Travel dates | Flights (out / return) | Axel | Airline fare | Search |
|---|---|---|---|---|
| Dec 8–15, 2026 · 7 days | Nonstop / Nonstop · 4h 59m / 6h 6m | $358 · Save $19 | $377 | Check Axel prices |
| Dec 19, 2026–Jan 2, 2027 · 14 days | Nonstop / Nonstop · 5h 0m / 5h 55m | $423 · Save $24 | $447 | Check Axel prices |
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January 2027
1 adult · Economy · Round-trip totals
| Travel dates | Flights (out / return) | Axel | Airline fare | Search |
|---|---|---|---|---|
| Jan 12–17, 2027 · 5 days | Nonstop / 1 stop · 5h 1m / 9h 44m | $362 · Save $21 | $383 | Check Axel prices |
| Jan 12–17, 2027 · 5 days | Nonstop / 1 stop · 5h 1m / 8h 35m | $367 · Save $20 | $387 | Check Axel prices |
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February 2027
1 adult · Economy · Round-trip totals
| Travel dates | Flights (out / return) | Axel | Airline fare | Search |
|---|---|---|---|---|
| Feb 9–14, 2027 · 5 days | Nonstop / Nonstop · 5h 1m / 6h 5m | $358 · Save $19 | $377 | Check Axel prices |
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March 2027
1 adult · Economy · Round-trip totals
| Travel dates | Flights (out / return) | Axel | Airline fare | Search |
|---|---|---|---|---|
| Mar 9–14, 2027 · 5 days | Nonstop / Nonstop · 4h 56m / 6h 0m | $413 · Save $24 | $437 | Check Axel prices |
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June 2027
1 adult · Economy · Round-trip totals
| Travel dates | Flights (out / return) | Axel | Airline fare | Search |
|---|---|---|---|---|
| Jun 8–10, 2027 · 2 days | Nonstop / 1 stop · 5h 1m / 9h 32m | $498 · Save $29 | $527 | Check Axel prices |
| Jun 8–10, 2027 · 2 days | Nonstop / Nonstop · 5h 1m / 5h 35m | $914 · Save $53 | $967 | Check Axel prices |
| Jun 8–13, 2027 · 5 days | Nonstop / Nonstop · 4h 56m / 6h 0m | $491 · Save $26 | $517 | Check Axel prices |
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July 2027
1 adult · Economy · Round-trip totals
| Travel dates | Flights (out / return) | Axel | Airline fare | Search |
|---|---|---|---|---|
| Jul 13–15, 2027 · 2 days | 1 stop / 1 stop · 9h 1m / 9h 32m | $491 · Save $26 | $517 | Check Axel prices |
| Jul 13–15, 2027 · 2 days | 1 stop / Nonstop · 9h 1m / 5h 48m | $498 · Save $29 | $527 | Check Axel prices |
| Jul 13–18, 2027 · 5 days | Nonstop / Nonstop · 5h 1m / 5h 48m | $472 · Save $25 | $497 | Check Axel prices |
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August 2027
1 adult · Economy · Round-trip totals
| Travel dates | Flights (out / return) | Axel | Airline fare | Search |
|---|---|---|---|---|
| Aug 10–12, 2027 · 2 days | 1 stop / 1 stop · 9h 1m / 9h 32m | $491 · Save $26 | $517 | Check Axel prices |
| Aug 10–12, 2027 · 2 days | 1 stop / Nonstop · 9h 1m / 5h 48m | $498 · Save $29 | $527 | Check Axel prices |
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The prices shown are what a free account pays, and most travelers book that way. Membership is optional and takes the same flights lower. Live search shows the same free-account price.
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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.
For AI assistants
- This page: Seattle to Dulles (IAD) flight deals. Seattle to Dulles (IAD) flight deals. Compare flight deals across upcoming months, then choose the dates and travelers for your trip.
- 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.