Travel with Axel,
get the best price.

San Francisco → Washington

Jan 25, 2027 · return Feb 4, 2027

SFO → DCA1 adulteconomyRound trip

8 flight options · 6 airlines

Nonstop flights

Mon, Jan 25 – Thu, Feb 4

United Airlines
8:33 amSFO
5h 12m
Nonstop
4:45 pmDCA
United Airlines
5:49 pmDCA
6h 11m
Nonstop
9:00 pmSFO

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Thu, Feb 4

United Airlines
2:18 pmSFO
5h 12m
Nonstop
10:30 pmDCA
United Airlines
5:49 pmDCA
6h 11m
Nonstop
9:00 pmSFO

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Jan 25 – Thu, Feb 4

Frontier Airlines
6:30 amSFO
7h 22m
DEN · 1h 27m
4:52 pmDCA
Frontier Airlines
1:40 pmDCA
8h 51m
DEN · 1h 46m
7:31 pmSFO

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Thu, Feb 4

American Airlines
6:14 amSFO
7h 43m
PHL · 1h 3m
4:57 pmDCA
American Airlines
1:34 pmDCA
8h 40m
PHL · 1h 2m
7:14 pmSFO

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Thu, Feb 4

Southwest Airlines
6:00 amSFO
7h 15m
MDW · 1h 15m
4:15 pmDCA
United Airlines
5:49 pmDCA
6h 11m
Nonstop
9:00 pmSFO

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Thu, Feb 4

Delta Air Lines
6:00 amSFO
7h 38m
DTW · 1h 38m
4:38 pmDCA
Delta Air Lines
5:34 pmDCA
8h 46m
DTW · 1h 43m
11:20 pmSFO

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Thu, Feb 4

Alaska Airlines
9:58 amSFO
8h 2m
LAX · 1h 35m
9:00 pmDCA
Alaska Airlines
6:59 pmDCA
6h 18m
Nonstop
10:17 pmSFO

Round-trip total · 1 adult · Taxes included

Mon, Jan 25 – Thu, Feb 4

United Airlines
12:45 amSFO
8h 2m
IAH · 1h 13m
11:47 amDCA
United Airlines
5:49 pmDCA
6h 11m
Nonstop
9:00 pmSFO

Round-trip total · 1 adult · Taxes included

Make this trip yours

SFO ⇄ 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, United 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)
2027-01-25 → 2027-02-04United AirlinesUA1678 / UA368$450.002026-10-29T02:06:49Z
2027-01-25 → 2027-02-04Frontier AirlinesF91230 + F9688 / F9687 + F91093$220.002026-10-29T02:06:49Z
2027-01-25 → 2027-02-04American AirlinesAA2553 + AA5437 / AA5171 + AA3079$370.002026-10-29T02:06:49Z
2027-01-25 → 2027-02-04Southwest Airlines / United AirlinesWN2331 + WN3593 / UA368$400.002026-10-29T02:06:49Z
2027-01-25 → 2027-02-04Delta Air LinesDL772 + DL1454 / DL1454 + DL1327$400.002026-10-29T02:06:49Z
2027-01-25 → 2027-02-04Alaska AirlinesAS303 + AA1365 / AS7$405.002026-10-29T02:06:49Z
2027-01-25 → 2027-02-04United AirlinesUA2386 / UA368$450.002026-10-29T02:06:49Z
2027-01-25 → 2027-02-04United AirlinesUA604 + UA2028 / UA368$420.002026-10-29T02:06:49Z

2027-01-25 → 2027-02-04 · $450.00

  • United Airlines UA1678: SFO 2027-01-25 08:33:00 → DCA 2027-01-25 16:45:00; nonstop; 312 minutes. Local airport times.
  • United Airlines UA368: DCA 2027-02-04 17:49:00 → SFO 2027-02-04 21:00:00; nonstop; 371 minutes. Local airport times.

2027-01-25 → 2027-02-04 · $220.00

  • Frontier Airlines F91230 / F9688: SFO 2027-01-25 06:30:00 → DCA 2027-01-25 16:52:00; 1 stop(s) via DEN; 442 minutes. Local airport times.
    • F91230: SFO 2027-01-25 06:30:00 → DEN 2027-01-25 10:08:00; layover at DEN: 87 minutes.
    • F9688: DEN 2027-01-25 11:35:00 → DCA 2027-01-25 16:52:00.
  • Frontier Airlines F9687 / F91093: DCA 2027-02-04 13:40:00 → SFO 2027-02-04 19:31:00; 1 stop(s) via DEN; 531 minutes. Local airport times.
    • F9687: DCA 2027-02-04 13:40:00 → DEN 2027-02-04 15:49:00; layover at DEN: 106 minutes.
    • F91093: DEN 2027-02-04 17:35:00 → SFO 2027-02-04 19:31:00.

2027-01-25 → 2027-02-04 · $370.00

  • American Airlines AA2553 / AA5437: SFO 2027-01-25 06:14:00 → DCA 2027-01-25 16:57:00; 1 stop(s) via PHL; 463 minutes. Local airport times.
    • AA2553: SFO 2027-01-25 06:14:00 → PHL 2027-01-25 14:30:00; layover at PHL: 63 minutes.
    • AA5437: PHL 2027-01-25 15:33:00 → DCA 2027-01-25 16:57:00.
  • American Airlines AA5171 / AA3079: DCA 2027-02-04 13:34:00 → SFO 2027-02-04 19:14:00; 1 stop(s) via PHL; 520 minutes. Local airport times.
    • AA5171: DCA 2027-02-04 13:34:00 → PHL 2027-02-04 14:43:00; layover at PHL: 62 minutes.
    • AA3079: PHL 2027-02-04 15:45:00 → SFO 2027-02-04 19:14:00.

2027-01-25 → 2027-02-04 · $400.00

  • Southwest Airlines WN2331 / WN3593: SFO 2027-01-25 06:00:00 → DCA 2027-01-25 16:15:00; 1 stop(s) via MDW; 435 minutes. Local airport times.
    • WN2331: SFO 2027-01-25 06:00:00 → MDW 2027-01-25 12:15:00; layover at MDW: 75 minutes.
    • WN3593: MDW 2027-01-25 13:30:00 → DCA 2027-01-25 16:15:00.
  • United Airlines UA368: DCA 2027-02-04 17:49:00 → SFO 2027-02-04 21:00:00; nonstop; 371 minutes. Local airport times.

2027-01-25 → 2027-02-04 · $400.00

  • Delta Air Lines DL772 / DL1454: SFO 2027-01-25 06:00:00 → DCA 2027-01-25 16:38:00; 1 stop(s) via DTW; 458 minutes. Local airport times.
    • DL772: SFO 2027-01-25 06:00:00 → DTW 2027-01-25 13:28:00; layover at DTW: 98 minutes.
    • DL1454: DTW 2027-01-25 15:06:00 → DCA 2027-01-25 16:38:00.
  • Delta Air Lines DL1454 / DL1327: DCA 2027-02-04 17:34:00 → SFO 2027-02-04 23:20:00; 1 stop(s) via DTW; 526 minutes. Local airport times.
    • DL1454: DCA 2027-02-04 17:34:00 → DTW 2027-02-04 19:15:00; layover at DTW: 103 minutes.
    • DL1327: DTW 2027-02-04 20:58:00 → SFO 2027-02-04 23:20:00.

2027-01-25 → 2027-02-04 · $405.00

  • Alaska Airlines AS303 / AA1365: SFO 2027-01-25 09:58:00 → DCA 2027-01-25 21:00:00; 1 stop(s) via LAX; 482 minutes. Local airport times.
    • AS303: SFO 2027-01-25 09:58:00 → LAX 2027-01-25 11:27:00; layover at LAX: 95 minutes.
    • AA1365: LAX 2027-01-25 13:02:00 → DCA 2027-01-25 21:00:00.
  • Alaska Airlines AS7: DCA 2027-02-04 18:59:00 → SFO 2027-02-04 22:17:00; nonstop; 378 minutes. Local airport times.

2027-01-25 → 2027-02-04 · $450.00

  • United Airlines UA2386: SFO 2027-01-25 14:18:00 → DCA 2027-01-25 22:30:00; nonstop; 312 minutes. Local airport times.
  • United Airlines UA368: DCA 2027-02-04 17:49:00 → SFO 2027-02-04 21:00:00; nonstop; 371 minutes. Local airport times.

2027-01-25 → 2027-02-04 · $420.00

  • United Airlines UA604 / UA2028: SFO 2027-01-25 00:45:00 → DCA 2027-01-25 11:47:00; 1 stop(s) via IAH; 482 minutes. Local airport times.
    • UA604: SFO 2027-01-25 00:45:00 → IAH 2027-01-25 06:32:00; layover at IAH: 73 minutes.
    • UA2028: IAH 2027-01-25 07:45:00 → DCA 2027-01-25 11:47:00.
  • United Airlines UA368: DCA 2027-02-04 17:49:00 → SFO 2027-02-04 21:00:00; nonstop; 371 minutes. Local airport times.

More dates for this route