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Route overview: Washington, DC to Denver (DEN) flight deals

Dulles → Denver

Dec 2, 2026 · return Dec 12, 2026

IAD → DEN1 adulteconomyRound trip

8 flight options · 2 airlines

Nonstop flights

Wed, Dec 2 – Sat, Dec 12

United Airlines
10:12 pmIAD
4h 3m
Nonstop
12:15 am+1DEN
United Airlines
6:00 amDEN
3h 19m
Nonstop
11:19 amIAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 12

United Airlines
4:21 pmIAD
4h 4m
Nonstop
6:25 pmDEN
United Airlines
6:00 amDEN
3h 19m
Nonstop
11:19 amIAD

Round-trip total · 1 adult · Taxes included

One-stop flights

Wed, Dec 2 – Sat, Dec 12

Delta Air Lines
7:06 pmIAD
6h 43m
MSP · 1h 25m
11:49 pmDEN
United Airlines
6:00 amDEN
3h 19m
Nonstop
11:19 amIAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 12

United Airlines
12:35 pmIAD
6h 3m
DTW · 1h 4m
4:38 pmDEN
United Airlines
6:00 amDEN
3h 19m
Nonstop
11:19 amIAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 12

United Airlines
12:45 pmIAD
6h 18m
CMH · 1h 16m
5:03 pmDEN
United Airlines
6:00 amDEN
3h 19m
Nonstop
11:19 amIAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 12

United Airlines
6:10 amIAD
6h 16m
ORD · 1h 8m
10:26 amDEN
United Airlines
6:00 amDEN
3h 19m
Nonstop
11:19 amIAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 12

United Airlines
12:40 pmIAD
6h 10m
IND · 1h 16m
4:50 pmDEN
United Airlines
6:00 amDEN
3h 19m
Nonstop
11:19 amIAD

Round-trip total · 1 adult · Taxes included

Wed, Dec 2 – Sat, Dec 12

United Airlines
8:15 amIAD
6h
CLE · 1h 7m
12:15 pmDEN
United Airlines
6:00 amDEN
3h 19m
Nonstop
11:19 amIAD

Round-trip total · 1 adult · Taxes included

Make this trip yours

IAD ⇄ DEN

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 1, 2026 → Dec 11, 2026Dec 3, 2026 → Dec 13, 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 Denver (DEN) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-02 → 2026-12-12United AirlinesUA495 / UA1279$385.002026-10-29T01:57:46Z
2026-12-02 → 2026-12-12Delta Air Lines / United AirlinesDL3783 + DL1278 / UA1279$372.502026-10-29T01:57:46Z
2026-12-02 → 2026-12-12United AirlinesUA395 / UA1279$385.002026-10-29T01:57:46Z
2026-12-02 → 2026-12-12United AirlinesUA3504 + UA624 / UA1279$367.502026-10-29T01:57:46Z
2026-12-02 → 2026-12-12United AirlinesUA4559 + UA1389 / UA1279$367.502026-10-29T01:57:46Z
2026-12-02 → 2026-12-12United AirlinesUA565 + UA2495 / UA1279$367.502026-10-29T01:57:46Z
2026-12-02 → 2026-12-12United AirlinesUA3543 + UA377 / UA1279$367.502026-10-29T01:57:46Z
2026-12-02 → 2026-12-12United AirlinesUA609 + UA1302 / UA1279$367.502026-10-29T01:57:46Z

2026-12-02 → 2026-12-12 · $385.00

  • United Airlines UA495: IAD 2026-12-02 22:12:00 → DEN 2026-12-03 00:15:00; nonstop; 243 minutes. Local airport times.
  • United Airlines UA1279: DEN 2026-12-12 06:00:00 → IAD 2026-12-12 11:19:00; nonstop; 199 minutes. Local airport times.

2026-12-02 → 2026-12-12 · $372.50

  • Delta Air Lines DL3783 / DL1278: IAD 2026-12-02 19:06:00 → DEN 2026-12-02 23:49:00; 1 stop(s) via MSP; 403 minutes. Local airport times.
    • DL3783: IAD 2026-12-02 19:06:00 → MSP 2026-12-02 21:04:00; layover at MSP: 85 minutes.
    • DL1278: MSP 2026-12-02 22:29:00 → DEN 2026-12-02 23:49:00.
  • United Airlines UA1279: DEN 2026-12-12 06:00:00 → IAD 2026-12-12 11:19:00; nonstop; 199 minutes. Local airport times.

2026-12-02 → 2026-12-12 · $385.00

  • United Airlines UA395: IAD 2026-12-02 16:21:00 → DEN 2026-12-02 18:25:00; nonstop; 244 minutes. Local airport times.
  • United Airlines UA1279: DEN 2026-12-12 06:00:00 → IAD 2026-12-12 11:19:00; nonstop; 199 minutes. Local airport times.

2026-12-02 → 2026-12-12 · $367.50

  • United Airlines UA3504 / UA624: IAD 2026-12-02 12:35:00 → DEN 2026-12-02 16:38:00; 1 stop(s) via DTW; 363 minutes. Local airport times.
    • UA3504: IAD 2026-12-02 12:35:00 → DTW 2026-12-02 14:19:00; layover at DTW: 64 minutes.
    • UA624: DTW 2026-12-02 15:23:00 → DEN 2026-12-02 16:38:00.
  • United Airlines UA1279: DEN 2026-12-12 06:00:00 → IAD 2026-12-12 11:19:00; nonstop; 199 minutes. Local airport times.

2026-12-02 → 2026-12-12 · $367.50

  • United Airlines UA4559 / UA1389: IAD 2026-12-02 12:45:00 → DEN 2026-12-02 17:03:00; 1 stop(s) via CMH; 378 minutes. Local airport times.
    • UA4559: IAD 2026-12-02 12:45:00 → CMH 2026-12-02 14:20:00; layover at CMH: 76 minutes.
    • UA1389: CMH 2026-12-02 15:36:00 → DEN 2026-12-02 17:03:00.
  • United Airlines UA1279: DEN 2026-12-12 06:00:00 → IAD 2026-12-12 11:19:00; nonstop; 199 minutes. Local airport times.

2026-12-02 → 2026-12-12 · $367.50

  • United Airlines UA565 / UA2495: IAD 2026-12-02 06:10:00 → DEN 2026-12-02 10:26:00; 1 stop(s) via ORD; 376 minutes. Local airport times.
    • UA565: IAD 2026-12-02 06:10:00 → ORD 2026-12-02 07:32:00; layover at ORD: 68 minutes.
    • UA2495: ORD 2026-12-02 08:40:00 → DEN 2026-12-02 10:26:00.
  • United Airlines UA1279: DEN 2026-12-12 06:00:00 → IAD 2026-12-12 11:19:00; nonstop; 199 minutes. Local airport times.

2026-12-02 → 2026-12-12 · $367.50

  • United Airlines UA3543 / UA377: IAD 2026-12-02 12:40:00 → DEN 2026-12-02 16:50:00; 1 stop(s) via IND; 370 minutes. Local airport times.
    • UA3543: IAD 2026-12-02 12:40:00 → IND 2026-12-02 14:33:00; layover at IND: 76 minutes.
    • UA377: IND 2026-12-02 15:49:00 → DEN 2026-12-02 16:50:00.
  • United Airlines UA1279: DEN 2026-12-12 06:00:00 → IAD 2026-12-12 11:19:00; nonstop; 199 minutes. Local airport times.

2026-12-02 → 2026-12-12 · $367.50

  • United Airlines UA609 / UA1302: IAD 2026-12-02 08:15:00 → DEN 2026-12-02 12:15:00; 1 stop(s) via CLE; 360 minutes. Local airport times.
    • UA609: IAD 2026-12-02 08:15:00 → CLE 2026-12-02 09:38:00; layover at CLE: 67 minutes.
    • UA1302: CLE 2026-12-02 10:45:00 → DEN 2026-12-02 12:15:00.
  • United Airlines UA1279: DEN 2026-12-12 06:00:00 → IAD 2026-12-12 11:19:00; nonstop; 199 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Dulles (IAD) to Denver (DEN) · Dec 2, 2026 · return Dec 12, 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.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • 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 Denver (DEN) 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.