Denver → San Juan flights

Denver (APA, DEN)→San Juan (SIG, SJU)

from€287

Last observed price · Last checked: 25 Aug 2026 · Price may change

Short answer

The lowest fare our own searches returned is €287, seen on 25 Aug 2026. October 2026 is the cheapest month in our observations, at €287. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.

Selected search

Last checked: 25 Aug 2026 · Price may change

€287

Fri 2 Oct 2026 → Sun 4 Oct 2026

Frontier Airlines1 stop2 nights

Cheapest

Last checked: 25 Aug 2026 · Price may change

€287 lowest6h 46m fastest

Options found on this date

FAFrontier Airlines06:40 · 1 stop€287

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Tickets found in the last 7 days

The lowest fares our queries caught, cheapest first.

FA€287Cheapest2 Oct 2026 → 4 Oct 2026Frontier Airlines · 1 stop · 06:40Last checked: 25 Aug 2026 · Price may change2 nightsView ticket →FA€3511 Dec 2026 → 6 Dec 2026Frontier Airlines · 2 stops · 13:20Last checked: 25 Aug 2026 · Price may change5 nightsView ticket →

Starting prices by month

The lowest fare our queries observed in each month. Open a month to see its days; click a day with no price and we will search it for you.

Observed priceLowest monthno price observedLast checked: 25 Aug 2026

Denver → San JuanFri 2 Oct 2026 · €287

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Route facts

Cheapest month

October 2026

€287

Typical duration

6h 46m

4406 km

Alternative airports

DEN, SJU

Frequently asked

Are there direct flights from Denver to San Juan?+

Our data holds no non-stop flight from Denver to San Juan. The fares on this page include at least one stop.

How much is a flight from Denver to San Juan?+

The lowest fare we have observed is €287, found on 25 Aug 2026. Prices move, so read it as a floor rather than a quote.

When is the cheapest month to fly from Denver to San Juan?+

In our observations October 2026 is the cheapest month so far, at €287.

More routes to San Juan

Last checked: 25 Aug 2026