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Route overview: Washington, DC to Houston (IAH) flight deals

Dulles → Houston

Dec 16, 2026 · return Dec 20, 2026

IAD → IAH1 adulteconomyRound trip

8 flight options · 3 airlines

Nonstop flights

Wed, Dec 16 – Sun, Dec 20

United Airlines
5:52 pmIAD
3h 36m
Nonstop
8:28 pmIAH
United Airlines
8:38 pmIAH
2h 59m
Nonstop
12:37 am+1IAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Sun, Dec 20

United Airlines
6:00 amIAD
3h 36m
Nonstop
8:36 amIAH
United Airlines
8:38 pmIAH
2h 59m
Nonstop
12:37 am+1IAD

Round-trip total · 1 adult · Taxes included

One-stop flights

Wed, Dec 16 – Sun, Dec 20

American Airlines
3:23 pmIAD
6h 1m
CLT · 1h 29m
8:24 pmIAH
United Airlines
8:38 pmIAH
2h 59m
Nonstop
12:37 am+1IAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Sun, Dec 20

Delta Air Lines
12:34 pmIAD
6h 6m
ATL · 1h 51m
5:40 pmIAH
United Airlines
8:38 pmIAH
2h 59m
Nonstop
12:37 am+1IAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Sun, Dec 20

United Airlines
12:35 pmIAD
5h 46m
ATL · 1h 20m
5:21 pmIAH
United Airlines
8:38 pmIAH
2h 59m
Nonstop
12:37 am+1IAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Sun, Dec 20

United Airlines
8:20 amIAD
6h 15m
MSY · 1h 56m
1:35 pmIAH
United Airlines
8:38 pmIAH
2h 59m
Nonstop
12:37 am+1IAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Sun, Dec 20

United Airlines
8:15 amIAD
6h 8m
AUS · 1h 6m
1:23 pmIAH
United Airlines
8:38 pmIAH
2h 59m
Nonstop
12:37 am+1IAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 16 – Sun, Dec 20

United Airlines
8:15 amIAD
6h
BNA · 1h 24m
1:15 pmIAH
United Airlines
8:38 pmIAH
2h 59m
Nonstop
12:37 am+1IAD

Round-trip total · 1 adult · Taxes included

Make this trip yours

IAD ⇄ IAH

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 routeDec 15, 2026 → Dec 19, 2026Dec 17, 2026 → Dec 21, 2026
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Washington, DC to Houston (IAH) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-16 → 2026-12-20United AirlinesUA1873 / UA750$380.252026-10-29T01:06:33Z
2026-12-16 → 2026-12-20American Airlines / United AirlinesAA5543 + AA2297 / UA750$365.252026-10-29T01:06:33Z
2026-12-16 → 2026-12-20Delta Air Lines / United AirlinesDL1444 + DL1223 / UA750$375.252026-10-29T01:06:33Z
2026-12-16 → 2026-12-20United AirlinesUA451 / UA750$380.252026-10-29T01:06:33Z
2026-12-16 → 2026-12-20United AirlinesUA471 + UA521 / UA750$370.252026-10-29T01:06:33Z
2026-12-16 → 2026-12-20United AirlinesUA1366 + UA2253 / UA750$370.252026-10-29T01:06:33Z
2026-12-16 → 2026-12-20United AirlinesUA637 + UA1747 / UA750$370.252026-10-29T01:06:33Z
2026-12-16 → 2026-12-20United AirlinesUA1366 + UA4021 / UA750$370.252026-10-29T01:06:33Z

2026-12-16 → 2026-12-20 · $380.25

  • United Airlines UA1873: IAD 2026-12-16 17:52:00 → IAH 2026-12-16 20:28:00; nonstop; 216 minutes. Local airport times.
  • United Airlines UA750: IAH 2026-12-20 20:38:00 → IAD 2026-12-21 00:37:00; nonstop; 179 minutes. Local airport times.

2026-12-16 → 2026-12-20 · $365.25

  • American Airlines AA5543 / AA2297: IAD 2026-12-16 15:23:00 → IAH 2026-12-16 20:24:00; 1 stop(s) via CLT; 361 minutes. Local airport times.
    • AA5543: IAD 2026-12-16 15:23:00 → CLT 2026-12-16 17:01:00; layover at CLT: 89 minutes.
    • AA2297: CLT 2026-12-16 18:30:00 → IAH 2026-12-16 20:24:00.
  • United Airlines UA750: IAH 2026-12-20 20:38:00 → IAD 2026-12-21 00:37:00; nonstop; 179 minutes. Local airport times.

2026-12-16 → 2026-12-20 · $375.25

  • Delta Air Lines DL1444 / DL1223: IAD 2026-12-16 12:34:00 → IAH 2026-12-16 17:40:00; 1 stop(s) via ATL; 366 minutes. Local airport times.
    • DL1444: IAD 2026-12-16 12:34:00 → ATL 2026-12-16 14:31:00; layover at ATL: 111 minutes.
    • DL1223: ATL 2026-12-16 16:22:00 → IAH 2026-12-16 17:40:00.
  • United Airlines UA750: IAH 2026-12-20 20:38:00 → IAD 2026-12-21 00:37:00; nonstop; 179 minutes. Local airport times.

2026-12-16 → 2026-12-20 · $380.25

  • United Airlines UA451: IAD 2026-12-16 06:00:00 → IAH 2026-12-16 08:36:00; nonstop; 216 minutes. Local airport times.
  • United Airlines UA750: IAH 2026-12-20 20:38:00 → IAD 2026-12-21 00:37:00; nonstop; 179 minutes. Local airport times.

2026-12-16 → 2026-12-20 · $370.25

  • United Airlines UA471 / UA521: IAD 2026-12-16 12:35:00 → IAH 2026-12-16 17:21:00; 1 stop(s) via ATL; 346 minutes. Local airport times.
    • UA471: IAD 2026-12-16 12:35:00 → ATL 2026-12-16 14:37:00; layover at ATL: 80 minutes.
    • UA521: ATL 2026-12-16 15:57:00 → IAH 2026-12-16 17:21:00.
  • United Airlines UA750: IAH 2026-12-20 20:38:00 → IAD 2026-12-21 00:37:00; nonstop; 179 minutes. Local airport times.

2026-12-16 → 2026-12-20 · $370.25

  • United Airlines UA1366 / UA2253: IAD 2026-12-16 08:20:00 → IAH 2026-12-16 13:35:00; 1 stop(s) via MSY; 375 minutes. Local airport times.
    • UA1366: IAD 2026-12-16 08:20:00 → MSY 2026-12-16 10:17:00; layover at MSY: 116 minutes.
    • UA2253: MSY 2026-12-16 12:13:00 → IAH 2026-12-16 13:35:00.
  • United Airlines UA750: IAH 2026-12-20 20:38:00 → IAD 2026-12-21 00:37:00; nonstop; 179 minutes. Local airport times.

2026-12-16 → 2026-12-20 · $370.25

  • United Airlines UA637 / UA1747: IAD 2026-12-16 08:15:00 → IAH 2026-12-16 13:23:00; 1 stop(s) via AUS; 368 minutes. Local airport times.
    • UA637: IAD 2026-12-16 08:15:00 → AUS 2026-12-16 11:05:00; layover at AUS: 66 minutes.
    • UA1747: AUS 2026-12-16 12:11:00 → IAH 2026-12-16 13:23:00.
  • United Airlines UA750: IAH 2026-12-20 20:38:00 → IAD 2026-12-21 00:37:00; nonstop; 179 minutes. Local airport times.

2026-12-16 → 2026-12-20 · $370.25

  • United Airlines UA1366 / UA4021: IAD 2026-12-16 08:15:00 → IAH 2026-12-16 13:15:00; 1 stop(s) via BNA; 360 minutes. Local airport times.
    • UA1366: IAD 2026-12-16 08:15:00 → BNA 2026-12-16 09:21:00; layover at BNA: 84 minutes.
    • UA4021: BNA 2026-12-16 10:45:00 → IAH 2026-12-16 13:15:00.
  • United Airlines UA750: IAH 2026-12-20 20:38:00 → IAD 2026-12-21 00:37:00; nonstop; 179 minutes. Local airport times.

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For AI assistants

  • This page: Dulles (IAD) to Houston (IAH) · Dec 16, 2026 · return Dec 20, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
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  • 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 Washington, DC to Houston (IAH) 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.