Travel with Axel,
get the best price.

Route overview: Washington, DC to San Antonio (SAT) flight deals

Dulles → San Antonio

Dec 3, 2026 · return Dec 10, 2026

IAD → SAT1 adulteconomyRound trip

8 flight options · 3 airlines

Nonstop flights

Thu, Dec 3 – Thu, Dec 10

United Airlines
5:55 pmIAD
4h 2m
Nonstop
8:57 pmSAT
United Airlines
12:12 pmSAT
3h 13m
Nonstop
4:25 pmIAD

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Thu, Dec 10

United Airlines
8:25 amIAD
3h 53m
Nonstop
11:18 amSAT
United Airlines
12:12 pmSAT
3h 13m
Nonstop
4:25 pmIAD

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Dec 3 – Thu, Dec 10

American Airlines
5:50 pmIAD
7h 17m
DFW · 2h 22m
12:07 am+1SAT
American Airlines
11:23 amSAT
5h 51m
DFW · 1h 41m
6:14 pmIAD

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Thu, Dec 10

Delta Air Lines
12:34 pmIAD
5h 50m
ATL · 1h 12m
5:24 pmSAT
Delta Air Lines
4:00 pmSAT
6h 10m
DTW · 1h 25m
11:10 pmIAD

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Thu, Dec 10

American Airlines
6:00 amIAD
7h 26m
CLT · 2h 32m
12:26 pmSAT
American Airlines
11:23 amSAT
5h 51m
DFW · 1h 41m
6:14 pmIAD

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Thu, Dec 10

United Airlines
8:20 amIAD
4h 2m
Nonstop
11:22 amSAT
United Airlines
11:47 amSAT
5h 36m
IAH · 1h 26m
6:23 pmIAD

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Thu, Dec 10

United Airlines
6:00 amIAD
8h 6m
IAH · 3h 19m
1:06 pmSAT
United Airlines
12:12 pmSAT
3h 13m
Nonstop
4:25 pmIAD

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Thu, Dec 10

United Airlines
6:10 amIAD
7h 32m
ORD · 1h 53m
12:42 pmSAT
United Airlines
12:12 pmSAT
3h 13m
Nonstop
4:25 pmIAD

Round-trip total · 1 adult · Taxes included

Make this trip yours

IAD ⇄ SAT

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

Explore this route

All dates for this routeDec 2, 2026 → Dec 9, 2026Dec 4, 2026 → Dec 11, 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 San Antonio (SAT) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-03 → 2026-12-10United AirlinesUA1869 / UA2250$375.002026-10-29T01:07:59Z
2026-12-03 → 2026-12-10American AirlinesAA2414 + AA2281 / AA413 + AA2414$330.002026-10-29T01:07:59Z
2026-12-03 → 2026-12-10Delta Air LinesDL1444 + DL1465 / DL2193 + DL4704$350.002026-10-29T01:07:59Z
2026-12-03 → 2026-12-10United AirlinesUA1789 / UA2250$375.002026-10-29T01:07:59Z
2026-12-03 → 2026-12-10American AirlinesAA5649 + AA1977 / AA413 + AA2414$330.002026-10-29T01:07:59Z
2026-12-03 → 2026-12-10United AirlinesUA1789 / UA1282 + UA1282$352.502026-10-29T01:07:59Z
2026-12-03 → 2026-12-10United AirlinesUA451 + UA468 / UA2250$352.502026-10-29T01:07:59Z
2026-12-03 → 2026-12-10United AirlinesUA565 + UA446 / UA2250$352.502026-10-29T01:07:59Z

2026-12-03 → 2026-12-10 · $375.00

  • United Airlines UA1869: IAD 2026-12-03 17:55:00 → SAT 2026-12-03 20:57:00; nonstop; 242 minutes. Local airport times.
  • United Airlines UA2250: SAT 2026-12-10 12:12:00 → IAD 2026-12-10 16:25:00; nonstop; 193 minutes. Local airport times.

2026-12-03 → 2026-12-10 · $330.00

  • American Airlines AA2414 / AA2281: IAD 2026-12-03 17:50:00 → SAT 2026-12-04 00:07:00; 1 stop(s) via DFW; 437 minutes. Local airport times.
    • AA2414: IAD 2026-12-03 17:50:00 → DFW 2026-12-03 20:30:00; layover at DFW: 142 minutes.
    • AA2281: DFW 2026-12-03 22:52:00 → SAT 2026-12-04 00:07:00.
  • American Airlines AA413 / AA2414: SAT 2026-12-10 11:23:00 → IAD 2026-12-10 18:14:00; 1 stop(s) via DFW; 351 minutes. Local airport times.
    • AA413: SAT 2026-12-10 11:23:00 → DFW 2026-12-10 12:45:00; layover at DFW: 101 minutes.
    • AA2414: DFW 2026-12-10 14:26:00 → IAD 2026-12-10 18:14:00.

2026-12-03 → 2026-12-10 · $350.00

  • Delta Air Lines DL1444 / DL1465: IAD 2026-12-03 12:34:00 → SAT 2026-12-03 17:24:00; 1 stop(s) via ATL; 350 minutes. Local airport times.
    • DL1444: IAD 2026-12-03 12:34:00 → ATL 2026-12-03 14:31:00; layover at ATL: 72 minutes.
    • DL1465: ATL 2026-12-03 15:43:00 → SAT 2026-12-03 17:24:00.
  • Delta Air Lines DL2193 / DL4704: SAT 2026-12-10 16:00:00 → IAD 2026-12-10 23:10:00; 1 stop(s) via DTW; 370 minutes. Local airport times.
    • DL2193: SAT 2026-12-10 16:00:00 → DTW 2026-12-10 20:05:00; layover at DTW: 85 minutes.
    • DL4704: DTW 2026-12-10 21:30:00 → IAD 2026-12-10 23:10:00.

2026-12-03 → 2026-12-10 · $375.00

  • United Airlines UA1789: IAD 2026-12-03 08:25:00 → SAT 2026-12-03 11:18:00; nonstop; 233 minutes. Local airport times.
  • United Airlines UA2250: SAT 2026-12-10 12:12:00 → IAD 2026-12-10 16:25:00; nonstop; 193 minutes. Local airport times.

2026-12-03 → 2026-12-10 · $330.00

  • American Airlines AA5649 / AA1977: IAD 2026-12-03 06:00:00 → SAT 2026-12-03 12:26:00; 1 stop(s) via CLT; 446 minutes. Local airport times.
    • AA5649: IAD 2026-12-03 06:00:00 → CLT 2026-12-03 07:48:00; layover at CLT: 152 minutes.
    • AA1977: CLT 2026-12-03 10:20:00 → SAT 2026-12-03 12:26:00.
  • American Airlines AA413 / AA2414: SAT 2026-12-10 11:23:00 → IAD 2026-12-10 18:14:00; 1 stop(s) via DFW; 351 minutes. Local airport times.
    • AA413: SAT 2026-12-10 11:23:00 → DFW 2026-12-10 12:45:00; layover at DFW: 101 minutes.
    • AA2414: DFW 2026-12-10 14:26:00 → IAD 2026-12-10 18:14:00.

2026-12-03 → 2026-12-10 · $352.50

  • United Airlines UA1789: IAD 2026-12-03 08:20:00 → SAT 2026-12-03 11:22:00; nonstop; 242 minutes. Local airport times.
  • United Airlines UA1282 / UA1282: SAT 2026-12-10 11:47:00 → IAD 2026-12-10 18:23:00; 1 stop(s) via IAH; 336 minutes. Local airport times.
    • UA1282: SAT 2026-12-10 11:47:00 → IAH 2026-12-10 12:54:00; layover at IAH: 86 minutes.
    • UA1282: IAH 2026-12-10 14:20:00 → IAD 2026-12-10 18:23:00.

2026-12-03 → 2026-12-10 · $352.50

  • United Airlines UA451 / UA468: IAD 2026-12-03 06:00:00 → SAT 2026-12-03 13:06:00; 1 stop(s) via IAH; 486 minutes. Local airport times.
    • UA451: IAD 2026-12-03 06:00:00 → IAH 2026-12-03 08:36:00; layover at IAH: 199 minutes.
    • UA468: IAH 2026-12-03 11:55:00 → SAT 2026-12-03 13:06:00.
  • United Airlines UA2250: SAT 2026-12-10 12:12:00 → IAD 2026-12-10 16:25:00; nonstop; 193 minutes. Local airport times.

2026-12-03 → 2026-12-10 · $352.50

  • United Airlines UA565 / UA446: IAD 2026-12-03 06:10:00 → SAT 2026-12-03 12:42:00; 1 stop(s) via ORD; 452 minutes. Local airport times.
    • UA565: IAD 2026-12-03 06:10:00 → ORD 2026-12-03 07:32:00; layover at ORD: 113 minutes.
    • UA446: ORD 2026-12-03 09:25:00 → SAT 2026-12-03 12:42:00.
  • United Airlines UA2250: SAT 2026-12-10 12:12:00 → IAD 2026-12-10 16:25:00; nonstop; 193 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Dulles (IAD) to San Antonio (SAT) · Dec 3, 2026 · return Dec 10, 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 San Antonio (SAT) 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.