Travel with Axel,
get the best price.

Denver → Washington

Dec 4, 2026 · one way

DEN → DCA1 adulteconomyOne way

9 flight options · 4 airlines

Nonstop flights

Fri, Dec 4 · One way

Frontier Airlines
4:40 pmDEN
3h 15m
Nonstop
9:55 pmDCA

One-way total · 1 adult · Taxes included

Fri, Dec 4 · One way

United Airlines
9:35 amDEN
3h 21m
Nonstop
2:56 pmDCA

One-way total · 1 adult · Taxes included

Fri, Dec 4 · One way

Frontier Airlines
11:35 amDEN
3h 17m
Nonstop
4:52 pmDCA

One-way total · 1 adult · Taxes included

One-stop flights

Fri, Dec 4 · One way

Southwest Airlines
2:00 pmDEN
6h 20m
MCI · 2h 30m
10:20 pmDCA

One-way total · 1 adult · Taxes included

Fri, Dec 4 · One way

Delta Air Lines
10:46 amDEN
6h 27m
ATL · 1h 57m
7:13 pmDCA

One-way total · 1 adult · Taxes included

Fri, Dec 4 · One way

Southwest Airlines
2:25 pmDEN
6h 30m
BNA · 2h 30m
10:55 pmDCA

One-way total · 1 adult · Taxes included

Fri, Dec 4 · One way

United Airlines
9:55 amDEN
6h 28m
ORD · 1h 35m
6:23 pmDCA

One-way total · 1 adult · Taxes included

Fri, Dec 4 · One way

United Airlines
9:50 amDEN
6h 28m
YYZ · 1h 38m
6:18 pmDCA

One-way total · 1 adult · Taxes included

Fri, Dec 4 · One way

Delta Air Lines
10:39 amDEN
6h
DTW · 1h 47m
6:39 pmDCA

One-way total · 1 adult · Taxes included

Make this trip yours

DEN ⇄ DCA

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Frontier Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-04 · one wayFrontier AirlinesF9690$95.002026-10-29T01:03:30Z
2026-12-04 · one wayUnited AirlinesUA647$185.002026-10-29T01:03:30Z
2026-12-04 · one waySouthwest AirlinesWN2075 + WN2234$155.002026-10-29T01:03:30Z
2026-12-04 · one wayDelta Air LinesDL346 + DL832$175.002026-10-29T01:03:30Z
2026-12-04 · one wayFrontier AirlinesF9688$95.002026-10-29T01:03:30Z
2026-12-04 · one waySouthwest AirlinesWN1573 + WN4667$155.002026-10-29T01:03:30Z
2026-12-04 · one wayUnited AirlinesUA2329 + UA5992$160.002026-10-29T01:03:30Z
2026-12-04 · one wayUnited AirlinesUA1874 + AC8784$160.002026-10-29T01:03:30Z
2026-12-04 · one wayDelta Air LinesDL1113 + DL2030$175.002026-10-29T01:03:30Z

2026-12-04 · one way · $95.00

  • Frontier Airlines F9690: DEN 2026-12-04 16:40:00 → DCA 2026-12-04 21:55:00; nonstop; 195 minutes. Local airport times.

2026-12-04 · one way · $185.00

  • United Airlines UA647: DEN 2026-12-04 09:35:00 → DCA 2026-12-04 14:56:00; nonstop; 201 minutes. Local airport times.

2026-12-04 · one way · $155.00

  • Southwest Airlines WN2075 / WN2234: DEN 2026-12-04 14:00:00 → DCA 2026-12-04 22:20:00; 1 stop(s) via MCI; 380 minutes. Local airport times.
    • WN2075: DEN 2026-12-04 14:00:00 → MCI 2026-12-04 16:35:00; layover at MCI: 150 minutes.
    • WN2234: MCI 2026-12-04 19:05:00 → DCA 2026-12-04 22:20:00.

2026-12-04 · one way · $175.00

  • Delta Air Lines DL346 / DL832: DEN 2026-12-04 10:46:00 → DCA 2026-12-04 19:13:00; 1 stop(s) via ATL; 387 minutes. Local airport times.
    • DL346: DEN 2026-12-04 10:46:00 → ATL 2026-12-04 15:33:00; layover at ATL: 117 minutes.
    • DL832: ATL 2026-12-04 17:30:00 → DCA 2026-12-04 19:13:00.

2026-12-04 · one way · $95.00

  • Frontier Airlines F9688: DEN 2026-12-04 11:35:00 → DCA 2026-12-04 16:52:00; nonstop; 197 minutes. Local airport times.

2026-12-04 · one way · $155.00

  • Southwest Airlines WN1573 / WN4667: DEN 2026-12-04 14:25:00 → DCA 2026-12-04 22:55:00; 1 stop(s) via BNA; 390 minutes. Local airport times.
    • WN1573: DEN 2026-12-04 14:25:00 → BNA 2026-12-04 17:45:00; layover at BNA: 150 minutes.
    • WN4667: BNA 2026-12-04 20:15:00 → DCA 2026-12-04 22:55:00.

2026-12-04 · one way · $160.00

  • United Airlines UA2329 / UA5992: DEN 2026-12-04 09:55:00 → DCA 2026-12-04 18:23:00; 1 stop(s) via ORD; 388 minutes. Local airport times.
    • UA2329: DEN 2026-12-04 09:55:00 → ORD 2026-12-04 13:35:00; layover at ORD: 95 minutes.
    • UA5992: ORD 2026-12-04 15:10:00 → DCA 2026-12-04 18:23:00.

2026-12-04 · one way · $160.00

  • United Airlines UA1874 / AC8784: DEN 2026-12-04 09:50:00 → DCA 2026-12-04 18:18:00; 1 stop(s) via YYZ; 388 minutes. Local airport times.
    • UA1874: DEN 2026-12-04 09:50:00 → YYZ 2026-12-04 15:02:00; layover at YYZ: 98 minutes.
    • AC8784: YYZ 2026-12-04 16:40:00 → DCA 2026-12-04 18:18:00.

2026-12-04 · one way · $175.00

  • Delta Air Lines DL1113 / DL2030: DEN 2026-12-04 10:39:00 → DCA 2026-12-04 18:39:00; 1 stop(s) via DTW; 360 minutes. Local airport times.
    • DL1113: DEN 2026-12-04 10:39:00 → DTW 2026-12-04 15:20:00; layover at DTW: 107 minutes.
    • DL2030: DTW 2026-12-04 17:07:00 → DCA 2026-12-04 18:39:00.

More dates for this route