Travel with Axel,
get the best price.

Route overview: San Diego to Dulles (IAD) flight deals

San Diego → Dulles

Jan 21, 2027 · one way

SAN → IAD1 adulteconomyOne way

9 flight options · 5 airlines

Nonstop flights

Thu, Jan 21 · One way

Alaska Airlines
9:50 amSAN
5h 1m
Nonstop
5:51 pmIAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

United Airlines
9:50 pmSAN
4h 47m
Nonstop
5:37 am+1IAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

United Airlines
12:35 pmSAN
4h 54m
Nonstop
8:29 pmIAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Thu, Jan 21 · One way

Frontier Airlines
7:56 pmSAN
7h 11m
LAS · 1h 14m
6:07 am+1IAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

American Airlines
1:11 pmSAN
7h 19m
DFW · 1h 9m
11:30 pmIAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Delta Air Lines
1:22 pmSAN
6h 59m
DTW · 1h 7m
11:21 pmIAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

United Airlines
10:30 pmSAN
7h 19m
ORD · 1h 13m
8:49 am+1IAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

United Airlines
2:30 pmSAN
7h 10m
LAX · 1h 10m
12:40 am+1IAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 · One way

Delta Air Lines
1:36 pmSAN
7h 11m
SLC · 1h 11m
11:47 pmIAD

One-way total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

SAN ⇄ IAD

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, Alaska 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

Explore this route

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.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-01-21 · one wayAlaska AirlinesAS506Axel-exclusive $218.502026-10-29T01:09:22Z
2027-01-21 · one wayUnited AirlinesUA2622Axel-exclusive $228.002026-10-29T01:09:22Z
2027-01-21 · one wayFrontier AirlinesF91326 + F94278Axel-exclusive $118.752026-10-29T01:09:22Z
2027-01-21 · one wayAmerican AirlinesAA3143 + AA1291Axel-exclusive $194.752026-10-29T01:09:22Z
2027-01-21 · one wayDelta Air LinesDL1900 + DL4704Axel-exclusive $204.252026-10-29T01:09:22Z
2027-01-21 · one wayUnited AirlinesUA444Axel-exclusive $228.002026-10-29T01:09:22Z
2027-01-21 · one wayUnited AirlinesUA540 + UA1055Axel-exclusive $199.502026-10-29T01:09:22Z
2027-01-21 · one wayUnited AirlinesUA660 + UA2184Axel-exclusive $199.502026-10-29T01:09:22Z
2027-01-21 · one wayDelta Air LinesDL1296 + DL847Axel-exclusive $204.252026-10-29T01:09:22Z

Route overview: San Diego to Dulles (IAD) flight deals

2027-01-21 · one way · Axel-exclusive $218.50

  • Alaska Airlines AS506: SAN 2027-01-21 09:50:00 → IAD 2027-01-21 17:51:00; nonstop; 301 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $228.00

  • United Airlines UA2622: SAN 2027-01-21 21:50:00 → IAD 2027-01-22 05:37:00; nonstop; 287 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $118.75

  • Frontier Airlines F91326 / F94278: SAN 2027-01-21 19:56:00 → IAD 2027-01-22 06:07:00; 1 stop(s) via LAS; 431 minutes. Local airport times.
    • F91326: SAN 2027-01-21 19:56:00 → LAS 2027-01-21 21:25:00; layover at LAS: 74 minutes.
    • F94278: LAS 2027-01-21 22:39:00 → IAD 2027-01-22 06:07:00.

2027-01-21 · one way · Axel-exclusive $194.75

  • American Airlines AA3143 / AA1291: SAN 2027-01-21 13:11:00 → IAD 2027-01-21 23:30:00; 1 stop(s) via DFW; 439 minutes. Local airport times.
    • AA3143: SAN 2027-01-21 13:11:00 → DFW 2027-01-21 18:28:00; layover at DFW: 69 minutes.
    • AA1291: DFW 2027-01-21 19:37:00 → IAD 2027-01-21 23:30:00.

2027-01-21 · one way · Axel-exclusive $204.25

  • Delta Air Lines DL1900 / DL4704: SAN 2027-01-21 13:22:00 → IAD 2027-01-21 23:21:00; 1 stop(s) via DTW; 419 minutes. Local airport times.
    • DL1900: SAN 2027-01-21 13:22:00 → DTW 2027-01-21 20:43:00; layover at DTW: 67 minutes.
    • DL4704: DTW 2027-01-21 21:50:00 → IAD 2027-01-21 23:21:00.

2027-01-21 · one way · Axel-exclusive $228.00

  • United Airlines UA444: SAN 2027-01-21 12:35:00 → IAD 2027-01-21 20:29:00; nonstop; 294 minutes. Local airport times.

2027-01-21 · one way · Axel-exclusive $199.50

  • United Airlines UA540 / UA1055: SAN 2027-01-21 22:30:00 → IAD 2027-01-22 08:49:00; 1 stop(s) via ORD; 439 minutes. Local airport times.
    • UA540: SAN 2027-01-21 22:30:00 → ORD 2027-01-22 04:42:00; layover at ORD: 73 minutes.
    • UA1055: ORD 2027-01-22 05:55:00 → IAD 2027-01-22 08:49:00.

2027-01-21 · one way · Axel-exclusive $199.50

  • United Airlines UA660 / UA2184: SAN 2027-01-21 14:30:00 → IAD 2027-01-22 00:40:00; 1 stop(s) via LAX; 430 minutes. Local airport times.
    • UA660: SAN 2027-01-21 14:30:00 → LAX 2027-01-21 15:35:00; layover at LAX: 70 minutes.
    • UA2184: LAX 2027-01-21 16:45:00 → IAD 2027-01-22 00:40:00.

2027-01-21 · one way · Axel-exclusive $204.25

  • Delta Air Lines DL1296 / DL847: SAN 2027-01-21 13:36:00 → IAD 2027-01-21 23:47:00; 1 stop(s) via SLC; 431 minutes. Local airport times.
    • DL1296: SAN 2027-01-21 13:36:00 → SLC 2027-01-21 16:40:00; layover at SLC: 71 minutes.
    • DL847: SLC 2027-01-21 17:51:00 → IAD 2027-01-21 23:47:00.

Explore this route

For AI assistants

  • This page: San Diego (SAN) to Dulles (IAD) · Jan 21, 2027 · one way: 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 San Diego to Dulles (IAD) 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.