Saint Louis → Dulles
Dec 21, 2026 · one way
STL → IAD1 adulteconomyOne way
7 flight options · 4 airlines
Nonstop flights
One-stop flights
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Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.
| Exact travel dates | Airline | Flights | Total price | Price issued (UTC) |
|---|---|---|---|---|
| 2026-12-21 · one way | United Airlines | UA4454 | $212.50 | 2026-10-29T01:28:37Z |
| 2026-12-21 · one way | Frontier Airlines | F94474 + F94708 | $118.75 | 2026-10-29T01:28:37Z |
| 2026-12-21 · one way | American Airlines | AA2486 + AA5317 | $200.00 | 2026-10-29T01:28:37Z |
| 2026-12-21 · one way | Delta Air Lines | DL2868 + DL5413 | $218.75 | 2026-10-29T01:28:37Z |
| 2026-12-21 · one way | United Airlines | UA4406 | $212.50 | 2026-10-29T01:28:37Z |
| 2026-12-21 · one way | United Airlines | UA4397 + UA1779 | $200.00 | 2026-10-29T01:28:37Z |
| 2026-12-21 · one way | Delta Air Lines | DL1571 + DL1695 | $218.75 | 2026-10-29T01:28:37Z |
2026-12-21 · one way · $212.50
- United Airlines UA4454: STL 2026-12-21 13:17:00 → IAD 2026-12-21 16:22:00; nonstop; 125 minutes. Local airport times.
2026-12-21 · one way · $118.75
- Frontier Airlines F94474 / F94708: STL 2026-12-21 18:21:00 → IAD 2026-12-22 00:51:00; 1 stop(s) via ATL; 330 minutes. Local airport times.
- F94474: STL 2026-12-21 18:21:00 → ATL 2026-12-21 21:16:00; layover at ATL: 103 minutes.
- F94708: ATL 2026-12-21 22:59:00 → IAD 2026-12-22 00:51:00.
2026-12-21 · one way · $200.00
- American Airlines AA2486 / AA5317: STL 2026-12-21 12:54:00 → IAD 2026-12-21 19:33:00; 1 stop(s) via CLT; 339 minutes. Local airport times.
- AA2486: STL 2026-12-21 12:54:00 → CLT 2026-12-21 15:42:00; layover at CLT: 135 minutes.
- AA5317: CLT 2026-12-21 17:57:00 → IAD 2026-12-21 19:33:00.
2026-12-21 · one way · $218.75
- Delta Air Lines DL2868 / DL5413: STL 2026-12-21 10:14:00 → IAD 2026-12-21 16:18:00; 1 stop(s) via DTW; 304 minutes. Local airport times.
- DL2868: STL 2026-12-21 10:14:00 → DTW 2026-12-21 12:46:00; layover at DTW: 119 minutes.
- DL5413: DTW 2026-12-21 14:45:00 → IAD 2026-12-21 16:18:00.
2026-12-21 · one way · $212.50
- United Airlines UA4406: STL 2026-12-21 08:30:00 → IAD 2026-12-21 11:35:00; nonstop; 125 minutes. Local airport times.
2026-12-21 · one way · $200.00
- United Airlines UA4397 / UA1779: STL 2026-12-21 18:55:00 → IAD 2026-12-22 00:30:00; 1 stop(s) via ORD; 275 minutes. Local airport times.
- UA4397: STL 2026-12-21 18:55:00 → ORD 2026-12-21 20:25:00; layover at ORD: 76 minutes.
- UA1779: ORD 2026-12-21 21:41:00 → IAD 2026-12-22 00:30:00.
2026-12-21 · one way · $218.75
- Delta Air Lines DL1571 / DL1695: STL 2026-12-21 10:06:00 → IAD 2026-12-21 16:02:00; 1 stop(s) via ATL; 296 minutes. Local airport times.
- DL1571: STL 2026-12-21 10:06:00 → ATL 2026-12-21 12:36:00; layover at ATL: 105 minutes.
- DL1695: ATL 2026-12-21 14:21:00 → IAD 2026-12-21 16:02:00.