Travel with Axel,
get the best price.

Route overview: Raleigh/Durham to San Juan (SJU) flight deals

Raleigh/Durham → San Juan

Dec 13, 2026 · return Dec 20, 2026

RDU → SJU1 adulteconomyRound trip

8 flight options · 5 airlines

Nonstop flights

Sun, Dec 13 – Sun, Dec 20

Frontier Airlines
8:09 pmRDU
3h 23m
Nonstop
12:32 am+1SJU
Frontier Airlines
3:19 pmSJU
3h 49m
Nonstop
6:08 pmRDU

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

JetBlue Airways
10:30 amRDU
3h 25m
Nonstop
2:55 pmSJU
JetBlue Airways
6:01 amSJU
3h 39m
Nonstop
8:40 amRDU

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 13 – Sun, Dec 20

United Airlines
3:02 pmRDU
6h 20m
IAD · 1h 15m
10:22 pmSJU
JetBlue Airways
6:01 amSJU
3h 39m
Nonstop
8:40 amRDU

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Southwest Airlines
2:20 pmRDU
6h 20m
MCO · 1h 50m
9:40 pmSJU
Southwest Airlines
2:05 pmSJU
7h 20m
BWI · 2h 5m
8:25 pmRDU

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

American Airlines
5:00 amRDU
6h 34m
MIA · 1h 37m
12:34 pmSJU
American Airlines
7:05 amSJU
7h 54m
CLT · 2h 56m
1:59 pmRDU

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Frontier Airlines
8:36 amRDU
6h 58m
PHL · 1h 34m
4:34 pmSJU
Frontier Airlines
3:19 pmSJU
3h 49m
Nonstop
6:08 pmRDU

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

Frontier Airlines
7:03 pmRDU
3h 28m
Nonstop
11:31 pmSJU
Frontier Airlines
3:55 amSJU
7h 17m
MCO · 2h 22m
10:12 amRDU

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Sun, Dec 20

JetBlue Airways
9:30 amRDU
3h 23m
Nonstop
1:53 pmSJU
JetBlue Airways
5:01 amSJU
8h 44m
FLL · 3h 52m
12:45 pmRDU

Round-trip total · 1 adult · Taxes included

Make this trip yours

RDU ⇄ SJU

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

Explore this route

All dates for this routeDec 12, 2026 · Return optionsDec 14, 2026 · Return optionsHotels in San Juan with Axel
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)
2026-12-13 → 2026-12-20Frontier AirlinesF91226 / F91225Axel-exclusive $275.632026-10-29T01:03:11Z
2026-12-13 → 2026-12-20JetBlue AirwaysB62929 / B62930Axel-exclusive $428.752026-10-29T01:03:11Z
2026-12-13 → 2026-12-20United Airlines / JetBlue AirwaysUA2463 + UA2025 / B62930Axel-exclusive $461.252026-10-29T01:03:11Z
2026-12-13 → 2026-12-20Southwest AirlinesWN3618 + WN2866 / WN4916 + WN2193Axel-exclusive $477.752026-10-29T01:03:11Z
2026-12-13 → 2026-12-20American AirlinesAA1231 + AA2141 / AA3324 + AA1897Axel-exclusive $477.752026-10-29T01:03:11Z
2026-12-13 → 2026-12-20Frontier AirlinesF91518 + F91166 / F91225Axel-exclusive $288.132026-10-29T01:03:11Z
2026-12-13 → 2026-12-20Frontier AirlinesF91226 / F91823 + F91040Axel-exclusive $293.752026-10-29T01:03:11Z
2026-12-13 → 2026-12-20JetBlue AirwaysB62929 / B61654 + B62926Axel-exclusive $417.882026-10-29T01:03:11Z

Route overview: Raleigh/Durham to San Juan (SJU) flight deals

2026-12-13 → 2026-12-20 · Axel-exclusive $275.63

  • Frontier Airlines F91226: RDU 2026-12-13 20:09:00 → SJU 2026-12-14 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91225: SJU 2026-12-20 15:19:00 → RDU 2026-12-20 18:08:00; nonstop; 229 minutes. Local airport times.

2026-12-13 → 2026-12-20 · Axel-exclusive $428.75

  • JetBlue Airways B62929: RDU 2026-12-13 10:30:00 → SJU 2026-12-13 14:55:00; nonstop; 205 minutes. Local airport times.
  • JetBlue Airways B62930: SJU 2026-12-20 06:01:00 → RDU 2026-12-20 08:40:00; nonstop; 219 minutes. Local airport times.

2026-12-13 → 2026-12-20 · Axel-exclusive $461.25

  • United Airlines UA2463 / UA2025: RDU 2026-12-13 15:02:00 → SJU 2026-12-13 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-13 15:02:00 → IAD 2026-12-13 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-13 17:29:00 → SJU 2026-12-13 22:22:00.
  • JetBlue Airways B62930: SJU 2026-12-20 06:01:00 → RDU 2026-12-20 08:40:00; nonstop; 219 minutes. Local airport times.

2026-12-13 → 2026-12-20 · Axel-exclusive $477.75

  • Southwest Airlines WN3618 / WN2866: RDU 2026-12-13 14:20:00 → SJU 2026-12-13 21:40:00; 1 stop(s) via MCO; 380 minutes. Local airport times.
    • WN3618: RDU 2026-12-13 14:20:00 → MCO 2026-12-13 16:05:00; layover at MCO: 110 minutes.
    • WN2866: MCO 2026-12-13 17:55:00 → SJU 2026-12-13 21:40:00.
  • Southwest Airlines WN4916 / WN2193: SJU 2026-12-20 14:05:00 → RDU 2026-12-20 20:25:00; 1 stop(s) via BWI; 440 minutes. Local airport times.
    • WN4916: SJU 2026-12-20 14:05:00 → BWI 2026-12-20 17:10:00; layover at BWI: 125 minutes.
    • WN2193: BWI 2026-12-20 19:15:00 → RDU 2026-12-20 20:25:00.

2026-12-13 → 2026-12-20 · Axel-exclusive $477.75

  • American Airlines AA1231 / AA2141: RDU 2026-12-13 05:00:00 → SJU 2026-12-13 12:34:00; 1 stop(s) via MIA; 394 minutes. Local airport times.
    • AA1231: RDU 2026-12-13 05:00:00 → MIA 2026-12-13 07:13:00; layover at MIA: 97 minutes.
    • AA2141: MIA 2026-12-13 08:50:00 → SJU 2026-12-13 12:34:00.
  • American Airlines AA3324 / AA1897: SJU 2026-12-20 07:05:00 → RDU 2026-12-20 13:59:00; 1 stop(s) via CLT; 474 minutes. Local airport times.
    • AA3324: SJU 2026-12-20 07:05:00 → CLT 2026-12-20 10:05:00; layover at CLT: 176 minutes.
    • AA1897: CLT 2026-12-20 13:01:00 → RDU 2026-12-20 13:59:00.

2026-12-13 → 2026-12-20 · Axel-exclusive $288.13

  • Frontier Airlines F91518 / F91166: RDU 2026-12-13 08:36:00 → SJU 2026-12-13 16:34:00; 1 stop(s) via PHL; 418 minutes. Local airport times.
    • F91518: RDU 2026-12-13 08:36:00 → PHL 2026-12-13 10:07:00; layover at PHL: 94 minutes.
    • F91166: PHL 2026-12-13 11:41:00 → SJU 2026-12-13 16:34:00.
  • Frontier Airlines F91225: SJU 2026-12-20 15:19:00 → RDU 2026-12-20 18:08:00; nonstop; 229 minutes. Local airport times.

2026-12-13 → 2026-12-20 · Axel-exclusive $293.75

  • Frontier Airlines F91226: RDU 2026-12-13 19:03:00 → SJU 2026-12-13 23:31:00; nonstop; 208 minutes. Local airport times.
  • Frontier Airlines F91823 / F91040: SJU 2026-12-20 03:55:00 → RDU 2026-12-20 10:12:00; 1 stop(s) via MCO; 437 minutes. Local airport times.
    • F91823: SJU 2026-12-20 03:55:00 → MCO 2026-12-20 06:00:00; layover at MCO: 142 minutes.
    • F91040: MCO 2026-12-20 08:22:00 → RDU 2026-12-20 10:12:00.

2026-12-13 → 2026-12-20 · Axel-exclusive $417.88

  • JetBlue Airways B62929: RDU 2026-12-13 09:30:00 → SJU 2026-12-13 13:53:00; nonstop; 203 minutes. Local airport times.
  • JetBlue Airways B61654 / B62926: SJU 2026-12-20 05:01:00 → RDU 2026-12-20 12:45:00; 1 stop(s) via FLL; 524 minutes. Local airport times.
    • B61654: SJU 2026-12-20 05:01:00 → FLL 2026-12-20 06:48:00; layover at FLL: 232 minutes.
    • B62926: FLL 2026-12-20 10:40:00 → RDU 2026-12-20 12:45:00.

Explore this route

For AI assistants

  • This page: Raleigh/Durham (RDU) to San Juan (SJU) · Dec 13, 2026 · return Dec 20, 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 Raleigh/Durham to San Juan (SJU) 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.