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Route overview: Boston to Santiago (STI) flight deals

Boston → Santiago

Dec 5, 2026 · return Dec 8, 2026

BOS → STI1 adulteconomyRound trip

8 flight options · 3 airlines

Nonstop flights

Sat, Dec 5 – Tue, Dec 8

JetBlue Airways
5:05 amBOS
3h 53m
Nonstop
9:58 amSTI
JetBlue Airways
7:00 amSTI
3h 59m
Nonstop
9:59 amBOS

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

JetBlue Airways
11:55 pmBOS
3h 55m
Nonstop
4:50 am+1STI
JetBlue Airways
7:00 amSTI
3h 59m
Nonstop
9:59 amBOS

Round-trip total · 1 adult · Taxes included

One-stop flights

Sat, Dec 5 – Tue, Dec 8

American Airlines
6:00 amBOS
8h 16m
PHL · 2h 57m
3:16 pmSTI
American Airlines
3:20 pmSTI
7h 34m
PHL · 2h 8m
9:54 pmBOS

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

United Airlines
7:20 amBOS
6h 33m
EWR · 1h 16m
2:53 pmSTI
United Airlines
6:00 amSTI
7h 26m
EWR · 2h 4m
12:26 pmBOS

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

American Airlines
7:38 amBOS
7h 37m
MIA · 1h 41m
4:15 pmSTI
American Airlines
3:20 pmSTI
7h 34m
PHL · 2h 8m
9:54 pmBOS

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

JetBlue Airways
6:09 pmBOS
7h 51m
JFK · 2h 43m
3:00 am+1STI
JetBlue Airways
7:00 amSTI
3h 59m
Nonstop
9:59 amBOS

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

JetBlue Airways
4:48 pmBOS
7h 11m
FLL · 1h 30m
12:59 am+1STI
JetBlue Airways
7:00 amSTI
3h 59m
Nonstop
9:59 amBOS

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

JetBlue Airways
8:40 amBOS
8h 29m
SJU · 3h 5m
6:09 pmSTI
JetBlue Airways
7:00 amSTI
3h 59m
Nonstop
9:59 amBOS

Round-trip total · 1 adult · Taxes included

Make this trip yours

BOS ⇄ STI

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeDec 4, 2026 → Dec 7, 2026Dec 6, 2026 → Dec 9, 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: Boston to Santiago (STI) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-05 → 2026-12-08JetBlue AirwaysB62023 / B61924$475.002026-10-29T00:52:52Z
2026-12-05 → 2026-12-08American AirlinesAA690 + AA2138 / AA2841 + AA1232$430.002026-10-29T00:52:52Z
2026-12-05 → 2026-12-08United AirlinesUA570 + UA1624 / UA240 + UA1669$445.002026-10-29T00:52:52Z
2026-12-05 → 2026-12-08JetBlue AirwaysB61323 / B61924$475.002026-10-29T00:52:52Z
2026-12-05 → 2026-12-08American AirlinesAA2980 + AA546 / AA2841 + AA1232$430.002026-10-29T00:52:52Z
2026-12-05 → 2026-12-08JetBlue AirwaysB6717 + B62637 / B61924$445.002026-10-29T00:52:52Z
2026-12-05 → 2026-12-08JetBlue AirwaysB61469 + B62449 / B61924$445.002026-10-29T00:52:52Z
2026-12-05 → 2026-12-08JetBlue AirwaysB6861 + B61607 / B61924$445.002026-10-29T00:52:52Z

2026-12-05 → 2026-12-08 · $475.00

  • JetBlue Airways B62023: BOS 2026-12-05 05:05:00 → STI 2026-12-05 09:58:00; nonstop; 233 minutes. Local airport times.
  • JetBlue Airways B61924: STI 2026-12-08 07:00:00 → BOS 2026-12-08 09:59:00; nonstop; 239 minutes. Local airport times.

2026-12-05 → 2026-12-08 · $430.00

  • American Airlines AA690 / AA2138: BOS 2026-12-05 06:00:00 → STI 2026-12-05 15:16:00; 1 stop(s) via PHL; 496 minutes. Local airport times.
    • AA690: BOS 2026-12-05 06:00:00 → PHL 2026-12-05 07:38:00; layover at PHL: 177 minutes.
    • AA2138: PHL 2026-12-05 10:35:00 → STI 2026-12-05 15:16:00.
  • American Airlines AA2841 / AA1232: STI 2026-12-08 15:20:00 → BOS 2026-12-08 21:54:00; 1 stop(s) via PHL; 454 minutes. Local airport times.
    • AA2841: STI 2026-12-08 15:20:00 → PHL 2026-12-08 18:19:00; layover at PHL: 128 minutes.
    • AA1232: PHL 2026-12-08 20:27:00 → BOS 2026-12-08 21:54:00.

2026-12-05 → 2026-12-08 · $445.00

  • United Airlines UA570 / UA1624: BOS 2026-12-05 07:20:00 → STI 2026-12-05 14:53:00; 1 stop(s) via EWR; 393 minutes. Local airport times.
    • UA570: BOS 2026-12-05 07:20:00 → EWR 2026-12-05 08:48:00; layover at EWR: 76 minutes.
    • UA1624: EWR 2026-12-05 10:04:00 → STI 2026-12-05 14:53:00.
  • United Airlines UA240 / UA1669: STI 2026-12-08 06:00:00 → BOS 2026-12-08 12:26:00; 1 stop(s) via EWR; 446 minutes. Local airport times.
    • UA240: STI 2026-12-08 06:00:00 → EWR 2026-12-08 09:05:00; layover at EWR: 124 minutes.
    • UA1669: EWR 2026-12-08 11:09:00 → BOS 2026-12-08 12:26:00.

2026-12-05 → 2026-12-08 · $475.00

  • JetBlue Airways B61323: BOS 2026-12-05 23:55:00 → STI 2026-12-06 04:50:00; nonstop; 235 minutes. Local airport times.
  • JetBlue Airways B61924: STI 2026-12-08 07:00:00 → BOS 2026-12-08 09:59:00; nonstop; 239 minutes. Local airport times.

2026-12-05 → 2026-12-08 · $430.00

  • American Airlines AA2980 / AA546: BOS 2026-12-05 07:38:00 → STI 2026-12-05 16:15:00; 1 stop(s) via MIA; 457 minutes. Local airport times.
    • AA2980: BOS 2026-12-05 07:38:00 → MIA 2026-12-05 11:20:00; layover at MIA: 101 minutes.
    • AA546: MIA 2026-12-05 13:01:00 → STI 2026-12-05 16:15:00.
  • American Airlines AA2841 / AA1232: STI 2026-12-08 15:20:00 → BOS 2026-12-08 21:54:00; 1 stop(s) via PHL; 454 minutes. Local airport times.
    • AA2841: STI 2026-12-08 15:20:00 → PHL 2026-12-08 18:19:00; layover at PHL: 128 minutes.
    • AA1232: PHL 2026-12-08 20:27:00 → BOS 2026-12-08 21:54:00.

2026-12-05 → 2026-12-08 · $445.00

  • JetBlue Airways B6717 / B62637: BOS 2026-12-05 18:09:00 → STI 2026-12-06 03:00:00; 1 stop(s) via JFK; 471 minutes. Local airport times.
    • B6717: BOS 2026-12-05 18:09:00 → JFK 2026-12-05 19:32:00; layover at JFK: 163 minutes.
    • B62637: JFK 2026-12-05 22:15:00 → STI 2026-12-06 03:00:00.
  • JetBlue Airways B61924: STI 2026-12-08 07:00:00 → BOS 2026-12-08 09:59:00; nonstop; 239 minutes. Local airport times.

2026-12-05 → 2026-12-08 · $445.00

  • JetBlue Airways B61469 / B62449: BOS 2026-12-05 16:48:00 → STI 2026-12-06 00:59:00; 1 stop(s) via FLL; 431 minutes. Local airport times.
    • B61469: BOS 2026-12-05 16:48:00 → FLL 2026-12-05 20:27:00; layover at FLL: 90 minutes.
    • B62449: FLL 2026-12-05 21:57:00 → STI 2026-12-06 00:59:00.
  • JetBlue Airways B61924: STI 2026-12-08 07:00:00 → BOS 2026-12-08 09:59:00; nonstop; 239 minutes. Local airport times.

2026-12-05 → 2026-12-08 · $445.00

  • JetBlue Airways B6861 / B61607: BOS 2026-12-05 08:40:00 → STI 2026-12-05 18:09:00; 1 stop(s) via SJU; 509 minutes. Local airport times.
    • B6861: BOS 2026-12-05 08:40:00 → SJU 2026-12-05 13:48:00; layover at SJU: 185 minutes.
    • B61607: SJU 2026-12-05 16:53:00 → STI 2026-12-05 18:09:00.
  • JetBlue Airways B61924: STI 2026-12-08 07:00:00 → BOS 2026-12-08 09:59:00; nonstop; 239 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Boston (BOS) to Santiago (STI) · Dec 5, 2026 · return Dec 8, 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 Boston to Santiago (STI) 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.