Cheap flights from San Juan to Boston
from 110 US$

From 149 USD — compare hundreds of airlines

We search 100+ flight sitesDirect flights~3h 52mReturn route: Boston → San Juan

The cheapest month is usually 2026-09 · 110 US$

Live fares from 100+ sites — free, with no hidden fees.

About this route

Compare flights from San Juan to Boston, a about 2,698 km route (around 3h 52m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as jetBlue operate this route.

Nonstop time

3h 52m

Distance

2,698 km

Stops

Nonstop

Airlines

The airports on this route

San Juan

Aeropuerto Internacional Luis Muñoz MarínSJU

About 13 km from Old San Juan

Getting around: Taxis, apps, shuttles and rental cars

When to buy and when to fly

Prices by date

Fares found by date — cheapest days in green.

See prices for my dates →

110 US$

05/09

153 US$

06/09

153 US$

07/09

153 US$

08/09

153 US$

09/09

153 US$

10/09

137 US$

11/09

157 US$

12/09

172 US$

13/09

186 US$

14/09

170 US$

15/09

170 US$

16/09

How to get the best price

1The sticker price is real — but it moves fastLow fares last hours or days. If the number works, search it today; waiting rarely improves it.

2Buy 4–8 weeks aheadThat window usually holds the best fares; holidays call for even more margin.

3Flexibility = moneyShifting departure 2–3 days can move the fare 100+ US$. Tuesdays and Wednesdays tend to be cheap.

Airlines on this route

jetBlue

FAQ

What's the cheapest month to fly San Juan to Boston?

It's usually 2026-09, from 110 USD. Use the price calendar to compare other dates.

How long is the flight from San Juan to Boston?

A nonstop flight takes about 3h 52m and covers around 2,698 km. Connecting itineraries take longer.

Are there direct flights from San Juan to Boston?

Yes, this route has nonstop flights. Filter by "nonstop" to see them.

Which airlines fly from San Juan to Boston?

jetBlue operate this route, among others. Compare them all in the results.

When should I book San Juan–Boston flights?

As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.