Travel with Axel,
get the best price.

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

Raleigh/Durham → San Juan

Dec 12, 2026 · choose your return date

RDU → SJU1 adulteconomyOne way and round trips

30 flight options · 4 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 12, 2026 · One wayFrontier AirlinesNonstop$125.00 Dec 12, 2026 · One waySouthwest AirlinesUp to 1 stop each way$215.00 Dec 12, 2026 – Dec 13, 2026 · 1 nightFrontier AirlinesNonstop$225.00 Dec 12, 2026 – Dec 13, 2026 · 1 nightUnited Airlines / Frontier AirlinesUp to 1 stop each way$320.00 Dec 12, 2026 – Dec 14, 2026 · 2 nightsFrontier AirlinesUp to 1 stop each way$237.50 Dec 12, 2026 – Dec 14, 2026 · 2 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$332.50 Dec 12, 2026 – Dec 15, 2026 · 3 nightsFrontier AirlinesNonstop$225.00 Dec 12, 2026 – Dec 15, 2026 · 3 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$320.00 Dec 12, 2026 – Dec 16, 2026 · 4 nightsFrontier AirlinesNonstop$225.00 Dec 12, 2026 – Dec 16, 2026 · 4 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$320.00 Dec 12, 2026 – Dec 17, 2026 · 5 nightsFrontier AirlinesNonstop$225.00 Dec 12, 2026 – Dec 17, 2026 · 5 nightsUnited Airlines / JetBlue AirwaysUp to 1 stop each way$382.50 Dec 12, 2026 – Dec 18, 2026 · 6 nightsFrontier AirlinesUp to 1 stop each way$237.50 Dec 12, 2026 – Dec 18, 2026 · 6 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$332.50 Dec 12, 2026 – Dec 19, 2026 · 7 nightsFrontier AirlinesNonstop$275.63 Dec 12, 2026 – Dec 19, 2026 · 7 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$370.63 Dec 12, 2026 – Dec 20, 2026 · 8 nightsFrontier AirlinesNonstop$275.63 Dec 12, 2026 – Dec 20, 2026 · 8 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$370.63 Dec 12, 2026 – Dec 21, 2026 · 9 nightsFrontier AirlinesUp to 1 stop each way$293.75 Dec 12, 2026 – Dec 21, 2026 · 9 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$388.75 Dec 12, 2026 – Dec 22, 2026 · 10 nightsFrontier AirlinesNonstop$275.63 Dec 12, 2026 – Dec 22, 2026 · 10 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$370.63 Dec 12, 2026 – Dec 23, 2026 · 11 nightsFrontier AirlinesNonstop$275.63 Dec 12, 2026 – Dec 23, 2026 · 11 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$370.63 Dec 12, 2026 – Dec 24, 2026 · 12 nightsFrontier AirlinesNonstop$275.63 Dec 12, 2026 – Dec 24, 2026 · 12 nightsUnited Airlines / JetBlue AirwaysUp to 1 stop each way$461.25 Dec 12, 2026 – Dec 25, 2026 · 13 nightsFrontier AirlinesUp to 1 stop each way$293.75 Dec 12, 2026 – Dec 25, 2026 · 13 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$388.75 Dec 12, 2026 – Dec 26, 2026 · 14 nightsFrontier AirlinesNonstop$275.63 Dec 12, 2026 – Dec 26, 2026 · 14 nightsUnited Airlines / Frontier AirlinesUp to 1 stop each way$370.63

Flights for your trip

  1. Sat, Dec 12 · One way

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Sat, Dec 12 · One way

    Southwest Airlines
    2:20 pmRDU
    6h 20m
    MCO · 1h 50m
    9:40 pmSJU

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Sat, Dec 12 – Sun, Dec 13

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Sat, Dec 12 – Sun, Dec 13

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Sat, Dec 12 – Mon, Dec 14

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    3:55 amSJU
    7h 17m
    MCO · 2h 22m
    10:12 amRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Sat, Dec 12 – Mon, Dec 14

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    Frontier Airlines
    3:55 amSJU
    7h 17m
    MCO · 2h 22m
    10:12 amRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Sat, Dec 12 – Tue, Dec 15

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Sat, Dec 12 – Tue, Dec 15

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Sat, Dec 12 – Wed, Dec 16

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Sat, Dec 12 – Wed, Dec 16

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Sat, Dec 12 – Fri, Dec 18

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    3:55 amSJU
    7h 17m
    MCO · 2h 22m
    10:12 amRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Sat, Dec 12 – Fri, Dec 18

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    Frontier Airlines
    3:55 amSJU
    7h 17m
    MCO · 2h 22m
    10:12 amRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Sat, Dec 12 – Sat, Dec 19

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Sat, Dec 12 – Sat, Dec 19

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Sat, Dec 12 – Sun, Dec 20

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Sat, Dec 12 – Sun, Dec 20

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Sat, Dec 12 – Tue, Dec 22

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Sat, Dec 12 – Tue, Dec 22

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Sat, Dec 12 – Wed, Dec 23

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Sat, Dec 12 – Wed, Dec 23

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Sat, Dec 12 – Thu, Dec 24

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Sat, Dec 12 – Thu, Dec 24

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    JetBlue Airways
    7:10 amSJU
    3h 42m
    Nonstop
    9:52 amRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Sat, Dec 12 – Sat, Dec 26

    Frontier Airlines
    8:09 pmRDU
    3h 23m
    Nonstop
    12:32 am+1SJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Sat, Dec 12 – Sat, Dec 26

    United Airlines
    3:02 pmRDU
    6h 20m
    IAD · 1h 15m
    10:22 pmSJU
    Frontier Airlines
    4:19 pmSJU
    3h 55m
    Nonstop
    7:14 pmRDU

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

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

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.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-12 · one wayFrontier AirlinesF91226Axel-exclusive $125.002026-10-29T01:03:11Z
2026-12-12 · one waySouthwest AirlinesWN3618 + WN2866Axel-exclusive $215.002026-10-29T01:03:11Z
2026-12-12 → 2026-12-13Frontier AirlinesF91226 / F91225Axel-exclusive $225.002026-10-29T01:03:11Z
2026-12-12 → 2026-12-13United Airlines / Frontier AirlinesUA2463 + UA2025 / F91225Axel-exclusive $320.002026-10-29T01:03:11Z
2026-12-12 → 2026-12-14Frontier AirlinesF91226 / F91823 + F91040Axel-exclusive $237.502026-10-29T01:03:11Z
2026-12-12 → 2026-12-14United Airlines / Frontier AirlinesUA2463 + UA2025 / F91823 + F91040Axel-exclusive $332.502026-10-29T01:03:11Z
2026-12-12 → 2026-12-15Frontier AirlinesF91226 / F91225Axel-exclusive $225.002026-10-29T01:03:11Z
2026-12-12 → 2026-12-15United Airlines / Frontier AirlinesUA2463 + UA2025 / F91225Axel-exclusive $320.002026-10-29T01:03:11Z
2026-12-12 → 2026-12-16Frontier AirlinesF91226 / F91225Axel-exclusive $225.002026-10-29T01:03:11Z
2026-12-12 → 2026-12-16United Airlines / Frontier AirlinesUA2463 + UA2025 / F91225Axel-exclusive $320.002026-10-29T01:03:11Z
2026-12-12 → 2026-12-17Frontier AirlinesF91226 / F91225Axel-exclusive $225.002026-10-29T01:03:11Z
2026-12-12 → 2026-12-17United Airlines / JetBlue AirwaysUA2463 + UA2025 / B62930Axel-exclusive $382.502026-10-29T01:03:11Z
2026-12-12 → 2026-12-18Frontier AirlinesF91226 / F91823 + F91040Axel-exclusive $237.502026-10-29T01:03:11Z
2026-12-12 → 2026-12-18United Airlines / Frontier AirlinesUA2463 + UA2025 / F91823 + F91040Axel-exclusive $332.502026-10-29T01:03:11Z
2026-12-12 → 2026-12-19Frontier AirlinesF91226 / F91225Axel-exclusive $275.632026-10-29T01:03:11Z
2026-12-12 → 2026-12-19United Airlines / Frontier AirlinesUA2463 + UA2025 / F91225Axel-exclusive $370.632026-10-29T01:03:11Z
2026-12-12 → 2026-12-20Frontier AirlinesF91226 / F91225Axel-exclusive $275.632026-10-29T01:03:11Z
2026-12-12 → 2026-12-20United Airlines / Frontier AirlinesUA2463 + UA2025 / F91225Axel-exclusive $370.632026-10-29T01:03:11Z
2026-12-12 → 2026-12-21Frontier AirlinesF91226 / F91823 + F91040Axel-exclusive $293.752026-10-29T01:03:11Z
2026-12-12 → 2026-12-21United Airlines / Frontier AirlinesUA2463 + UA2025 / F91823 + F91040Axel-exclusive $388.752026-10-29T01:03:11Z
2026-12-12 → 2026-12-22Frontier AirlinesF91226 / F91225Axel-exclusive $275.632026-10-29T01:03:11Z
2026-12-12 → 2026-12-22United Airlines / Frontier AirlinesUA2463 + UA2025 / F91225Axel-exclusive $370.632026-10-29T01:03:11Z
2026-12-12 → 2026-12-23Frontier AirlinesF91226 / F91225Axel-exclusive $275.632026-10-29T01:03:11Z
2026-12-12 → 2026-12-23United Airlines / Frontier AirlinesUA2463 + UA2025 / F91225Axel-exclusive $370.632026-10-29T01:03:11Z
2026-12-12 → 2026-12-24Frontier AirlinesF91226 / F91225Axel-exclusive $275.632026-10-29T01:03:11Z
2026-12-12 → 2026-12-24United Airlines / JetBlue AirwaysUA2463 + UA2025 / B62930Axel-exclusive $461.252026-10-29T01:03:11Z
2026-12-12 → 2026-12-25Frontier AirlinesF91226 / F91823 + F91040Axel-exclusive $293.752026-10-29T01:03:11Z
2026-12-12 → 2026-12-25United Airlines / Frontier AirlinesUA2463 + UA2025 / F91823 + F91040Axel-exclusive $388.752026-10-29T01:03:11Z
2026-12-12 → 2026-12-26Frontier AirlinesF91226 / F91225Axel-exclusive $275.632026-10-29T01:03:11Z
2026-12-12 → 2026-12-26United Airlines / Frontier AirlinesUA2463 + UA2025 / F91225Axel-exclusive $370.632026-10-29T01:03:11Z

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

2026-12-12 · one way · Axel-exclusive $125.00

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.

2026-12-12 · one way · Axel-exclusive $215.00

  • Southwest Airlines WN3618 / WN2866: RDU 2026-12-12 14:20:00 → SJU 2026-12-12 21:40:00; 1 stop(s) via MCO; 380 minutes. Local airport times.
    • WN3618: RDU 2026-12-12 14:20:00 → MCO 2026-12-12 16:05:00; layover at MCO: 110 minutes.
    • WN2866: MCO 2026-12-12 17:55:00 → SJU 2026-12-12 21:40:00.

2026-12-12 → 2026-12-13 · Axel-exclusive $225.00

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91225: SJU 2026-12-13 16:19:00 → RDU 2026-12-13 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-13 · Axel-exclusive $320.00

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • Frontier Airlines F91225: SJU 2026-12-13 16:19:00 → RDU 2026-12-13 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-14 · Axel-exclusive $237.50

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91823 / F91040: SJU 2026-12-14 03:55:00 → RDU 2026-12-14 10:12:00; 1 stop(s) via MCO; 437 minutes. Local airport times.
    • F91823: SJU 2026-12-14 03:55:00 → MCO 2026-12-14 06:00:00; layover at MCO: 142 minutes.
    • F91040: MCO 2026-12-14 08:22:00 → RDU 2026-12-14 10:12:00.

2026-12-12 → 2026-12-14 · Axel-exclusive $332.50

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • Frontier Airlines F91823 / F91040: SJU 2026-12-14 03:55:00 → RDU 2026-12-14 10:12:00; 1 stop(s) via MCO; 437 minutes. Local airport times.
    • F91823: SJU 2026-12-14 03:55:00 → MCO 2026-12-14 06:00:00; layover at MCO: 142 minutes.
    • F91040: MCO 2026-12-14 08:22:00 → RDU 2026-12-14 10:12:00.

2026-12-12 → 2026-12-15 · Axel-exclusive $225.00

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91225: SJU 2026-12-15 16:19:00 → RDU 2026-12-15 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-15 · Axel-exclusive $320.00

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • Frontier Airlines F91225: SJU 2026-12-15 16:19:00 → RDU 2026-12-15 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-16 · Axel-exclusive $225.00

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91225: SJU 2026-12-16 16:19:00 → RDU 2026-12-16 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-16 · Axel-exclusive $320.00

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • Frontier Airlines F91225: SJU 2026-12-16 16:19:00 → RDU 2026-12-16 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-18 · Axel-exclusive $237.50

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91823 / F91040: SJU 2026-12-18 03:55:00 → RDU 2026-12-18 10:12:00; 1 stop(s) via MCO; 437 minutes. Local airport times.
    • F91823: SJU 2026-12-18 03:55:00 → MCO 2026-12-18 06:00:00; layover at MCO: 142 minutes.
    • F91040: MCO 2026-12-18 08:22:00 → RDU 2026-12-18 10:12:00.

2026-12-12 → 2026-12-18 · Axel-exclusive $332.50

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • Frontier Airlines F91823 / F91040: SJU 2026-12-18 03:55:00 → RDU 2026-12-18 10:12:00; 1 stop(s) via MCO; 437 minutes. Local airport times.
    • F91823: SJU 2026-12-18 03:55:00 → MCO 2026-12-18 06:00:00; layover at MCO: 142 minutes.
    • F91040: MCO 2026-12-18 08:22:00 → RDU 2026-12-18 10:12:00.

2026-12-12 → 2026-12-19 · Axel-exclusive $275.63

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91225: SJU 2026-12-19 16:19:00 → RDU 2026-12-19 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-19 · Axel-exclusive $370.63

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • Frontier Airlines F91225: SJU 2026-12-19 16:19:00 → RDU 2026-12-19 19:14:00; nonstop; 235 minutes. Local airport times.

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

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91225: SJU 2026-12-20 16:19:00 → RDU 2026-12-20 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-20 · Axel-exclusive $370.63

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • Frontier Airlines F91225: SJU 2026-12-20 16:19:00 → RDU 2026-12-20 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-22 · Axel-exclusive $275.63

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91225: SJU 2026-12-22 16:19:00 → RDU 2026-12-22 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-22 · Axel-exclusive $370.63

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • Frontier Airlines F91225: SJU 2026-12-22 16:19:00 → RDU 2026-12-22 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-23 · Axel-exclusive $275.63

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91225: SJU 2026-12-23 16:19:00 → RDU 2026-12-23 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-23 · Axel-exclusive $370.63

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • Frontier Airlines F91225: SJU 2026-12-23 16:19:00 → RDU 2026-12-23 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-24 · Axel-exclusive $275.63

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91225: SJU 2026-12-24 16:19:00 → RDU 2026-12-24 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-24 · Axel-exclusive $461.25

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • JetBlue Airways B62930: SJU 2026-12-24 07:10:00 → RDU 2026-12-24 09:52:00; nonstop; 222 minutes. Local airport times.

2026-12-12 → 2026-12-26 · Axel-exclusive $275.63

  • Frontier Airlines F91226: RDU 2026-12-12 20:09:00 → SJU 2026-12-13 00:32:00; nonstop; 203 minutes. Local airport times.
  • Frontier Airlines F91225: SJU 2026-12-26 16:19:00 → RDU 2026-12-26 19:14:00; nonstop; 235 minutes. Local airport times.

2026-12-12 → 2026-12-26 · Axel-exclusive $370.63

  • United Airlines UA2463 / UA2025: RDU 2026-12-12 15:02:00 → SJU 2026-12-12 22:22:00; 1 stop(s) via IAD; 380 minutes. Local airport times.
    • UA2463: RDU 2026-12-12 15:02:00 → IAD 2026-12-12 16:14:00; layover at IAD: 75 minutes.
    • UA2025: IAD 2026-12-12 17:29:00 → SJU 2026-12-12 22:22:00.
  • Frontier Airlines F91225: SJU 2026-12-26 16:19:00 → RDU 2026-12-26 19:14:00; nonstop; 235 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Raleigh/Durham (RDU) to San Juan (SJU) · Dec 12, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • 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. 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.