Travel with Axel,
get the best price.

Denver → Washington

Jan 3, 2027 · return Jan 5, 2027

DEN → DCA1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Sun, Jan 3 – Tue, Jan 5

Frontier Airlines
4:35 pmDEN
3h 15m
Nonstop
9:50 pmDCA
Frontier Airlines
6:00 pmDCA
4h 10m
Nonstop
8:10 pmDEN

Round-trip total · 1 adult · Taxes included

Sun, Jan 3 – Tue, Jan 5

United Airlines
9:35 amDEN
3h 21m
Nonstop
2:56 pmDCA
United Airlines
4:13 pmDCA
4h 7m
Nonstop
6:20 pmDEN

Round-trip total · 1 adult · Taxes included

Sun, Jan 3 – Tue, Jan 5

Frontier Airlines
11:40 amDEN
3h 17m
Nonstop
4:57 pmDCA
Frontier Airlines
6:00 pmDCA
4h 10m
Nonstop
8:10 pmDEN

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Jan 3 – Tue, Jan 5

Southwest Airlines
2:00 pmDEN
6h 20m
MCI · 2h 30m
10:20 pmDCA
Southwest Airlines
5:25 pmDCA
6h 45m
DAL · 1h 10m
10:10 pmDEN

Round-trip total · 1 adult · Taxes included

Sun, Jan 3 – Tue, Jan 5

Delta Air Lines
10:39 amDEN
6h
DTW · 1h 47m
6:39 pmDCA
Delta Air Lines
7:20 pmDCA
6h 29m
MSP · 1h 23m
11:49 pmDEN

Round-trip total · 1 adult · Taxes included

Sun, Jan 3 – Tue, Jan 5

Southwest Airlines
2:25 pmDEN
6h 30m
BNA · 2h 30m
10:55 pmDCA
Southwest Airlines
5:25 pmDCA
6h 45m
DAL · 1h 10m
10:10 pmDEN

Round-trip total · 1 adult · Taxes included

Sun, Jan 3 – Tue, Jan 5

United Airlines
9:50 amDEN
6h 28m
YYZ · 1h 38m
6:18 pmDCA
United Airlines
4:13 pmDCA
4h 7m
Nonstop
6:20 pmDEN

Round-trip total · 1 adult · Taxes included

Sun, Jan 3 – Tue, Jan 5

United Airlines
9:55 amDEN
6h 28m
ORD · 1h 35m
6:23 pmDCA
United Airlines
4:13 pmDCA
4h 7m
Nonstop
6:20 pmDEN

Round-trip total · 1 adult · Taxes included

Sun, Jan 3 – Tue, Jan 5

Delta Air Lines
10:46 amDEN
6h 27m
ATL · 1h 57m
7:13 pmDCA
Delta Air Lines
7:20 pmDCA
6h 29m
MSP · 1h 23m
11:49 pmDEN

Round-trip 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 24, 2026 → Nov 29, 2026Dec 22, 2026 → Dec 27, 2026Dec 30, 2026 → Jan 2, 2027Jan 15, 2027 → Jan 18, 2027Oct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Jan 22, 2027 → Jan 25, 2027Oct 30, 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)
2027-01-03 → 2027-01-05Frontier AirlinesF9690 / F9689$191.702026-10-29T01:03:30Z
2027-01-03 → 2027-01-05United AirlinesUA647 / UA746$378.082026-10-29T01:03:30Z
2027-01-03 → 2027-01-05Southwest AirlinesWN2075 + WN2234 / WN158 + WN528$319.502026-10-29T01:03:30Z
2027-01-03 → 2027-01-05Delta Air LinesDL1113 + DL2030 / DL2963 + DL1278$362.102026-10-29T01:03:30Z
2027-01-03 → 2027-01-05Frontier AirlinesF9688 / F9689$191.702026-10-29T01:03:30Z
2027-01-03 → 2027-01-05Southwest AirlinesWN1573 + WN4667 / WN158 + WN528$319.502026-10-29T01:03:30Z
2027-01-03 → 2027-01-05United AirlinesUA1874 + AC8784 / UA746$351.532026-10-29T01:03:30Z
2027-01-03 → 2027-01-05United AirlinesUA2329 + UA5992 / UA746$351.532026-10-29T01:03:30Z
2027-01-03 → 2027-01-05Delta Air LinesDL346 + DL832 / DL2963 + DL1278$362.102026-10-29T01:03:30Z

2027-01-03 → 2027-01-05 · $191.70

  • Frontier Airlines F9690: DEN 2027-01-03 16:35:00 → DCA 2027-01-03 21:50:00; nonstop; 195 minutes. Local airport times.
  • Frontier Airlines F9689: DCA 2027-01-05 18:00:00 → DEN 2027-01-05 20:10:00; nonstop; 250 minutes. Local airport times.

2027-01-03 → 2027-01-05 · $378.08

  • United Airlines UA647: DEN 2027-01-03 09:35:00 → DCA 2027-01-03 14:56:00; nonstop; 201 minutes. Local airport times.
  • United Airlines UA746: DCA 2027-01-05 16:13:00 → DEN 2027-01-05 18:20:00; nonstop; 247 minutes. Local airport times.

2027-01-03 → 2027-01-05 · $319.50

  • Southwest Airlines WN2075 / WN2234: DEN 2027-01-03 14:00:00 → DCA 2027-01-03 22:20:00; 1 stop(s) via MCI; 380 minutes. Local airport times.
    • WN2075: DEN 2027-01-03 14:00:00 → MCI 2027-01-03 16:35:00; layover at MCI: 150 minutes.
    • WN2234: MCI 2027-01-03 19:05:00 → DCA 2027-01-03 22:20:00.
  • Southwest Airlines WN158 / WN528: DCA 2027-01-05 17:25:00 → DEN 2027-01-05 22:10:00; 1 stop(s) via DAL; 405 minutes. Local airport times.
    • WN158: DCA 2027-01-05 17:25:00 → DAL 2027-01-05 19:55:00; layover at DAL: 70 minutes.
    • WN528: DAL 2027-01-05 21:05:00 → DEN 2027-01-05 22:10:00.

2027-01-03 → 2027-01-05 · $362.10

  • Delta Air Lines DL1113 / DL2030: DEN 2027-01-03 10:39:00 → DCA 2027-01-03 18:39:00; 1 stop(s) via DTW; 360 minutes. Local airport times.
    • DL1113: DEN 2027-01-03 10:39:00 → DTW 2027-01-03 15:20:00; layover at DTW: 107 minutes.
    • DL2030: DTW 2027-01-03 17:07:00 → DCA 2027-01-03 18:39:00.
  • Delta Air Lines DL2963 / DL1278: DCA 2027-01-05 19:20:00 → DEN 2027-01-05 23:49:00; 1 stop(s) via MSP; 389 minutes. Local airport times.
    • DL2963: DCA 2027-01-05 19:20:00 → MSP 2027-01-05 21:06:00; layover at MSP: 83 minutes.
    • DL1278: MSP 2027-01-05 22:29:00 → DEN 2027-01-05 23:49:00.

2027-01-03 → 2027-01-05 · $191.70

  • Frontier Airlines F9688: DEN 2027-01-03 11:40:00 → DCA 2027-01-03 16:57:00; nonstop; 197 minutes. Local airport times.
  • Frontier Airlines F9689: DCA 2027-01-05 18:00:00 → DEN 2027-01-05 20:10:00; nonstop; 250 minutes. Local airport times.

2027-01-03 → 2027-01-05 · $319.50

  • Southwest Airlines WN1573 / WN4667: DEN 2027-01-03 14:25:00 → DCA 2027-01-03 22:55:00; 1 stop(s) via BNA; 390 minutes. Local airport times.
    • WN1573: DEN 2027-01-03 14:25:00 → BNA 2027-01-03 17:45:00; layover at BNA: 150 minutes.
    • WN4667: BNA 2027-01-03 20:15:00 → DCA 2027-01-03 22:55:00.
  • Southwest Airlines WN158 / WN528: DCA 2027-01-05 17:25:00 → DEN 2027-01-05 22:10:00; 1 stop(s) via DAL; 405 minutes. Local airport times.
    • WN158: DCA 2027-01-05 17:25:00 → DAL 2027-01-05 19:55:00; layover at DAL: 70 minutes.
    • WN528: DAL 2027-01-05 21:05:00 → DEN 2027-01-05 22:10:00.

2027-01-03 → 2027-01-05 · $351.53

  • United Airlines UA1874 / AC8784: DEN 2027-01-03 09:50:00 → DCA 2027-01-03 18:18:00; 1 stop(s) via YYZ; 388 minutes. Local airport times.
    • UA1874: DEN 2027-01-03 09:50:00 → YYZ 2027-01-03 15:02:00; layover at YYZ: 98 minutes.
    • AC8784: YYZ 2027-01-03 16:40:00 → DCA 2027-01-03 18:18:00.
  • United Airlines UA746: DCA 2027-01-05 16:13:00 → DEN 2027-01-05 18:20:00; nonstop; 247 minutes. Local airport times.

2027-01-03 → 2027-01-05 · $351.53

  • United Airlines UA2329 / UA5992: DEN 2027-01-03 09:55:00 → DCA 2027-01-03 18:23:00; 1 stop(s) via ORD; 388 minutes. Local airport times.
    • UA2329: DEN 2027-01-03 09:55:00 → ORD 2027-01-03 13:35:00; layover at ORD: 95 minutes.
    • UA5992: ORD 2027-01-03 15:10:00 → DCA 2027-01-03 18:23:00.
  • United Airlines UA746: DCA 2027-01-05 16:13:00 → DEN 2027-01-05 18:20:00; nonstop; 247 minutes. Local airport times.

2027-01-03 → 2027-01-05 · $362.10

  • Delta Air Lines DL346 / DL832: DEN 2027-01-03 10:46:00 → DCA 2027-01-03 19:13:00; 1 stop(s) via ATL; 387 minutes. Local airport times.
    • DL346: DEN 2027-01-03 10:46:00 → ATL 2027-01-03 15:33:00; layover at ATL: 117 minutes.
    • DL832: ATL 2027-01-03 17:30:00 → DCA 2027-01-03 19:13:00.
  • Delta Air Lines DL2963 / DL1278: DCA 2027-01-05 19:20:00 → DEN 2027-01-05 23:49:00; 1 stop(s) via MSP; 389 minutes. Local airport times.
    • DL2963: DCA 2027-01-05 19:20:00 → MSP 2027-01-05 21:06:00; layover at MSP: 83 minutes.
    • DL1278: MSP 2027-01-05 22:29:00 → DEN 2027-01-05 23:49:00.

More dates for this route