Cheapest return flights from Washington to San Juan in October from 197€
AirHint found the following cheapest return flights from Washington (IAD) to San Juan (SJU)
in October 2025 (see full year ).
Return flights
28 Oct
- 30 Oct
Frontier Airlines
197 €
26 Oct
- 01 Nov
Frontier Airlines
215 €
28 Oct
- 03 Nov
Frontier Airlines
247 €
30 Oct
- 04 Nov
Frontier Airlines
255 €
30 Oct
- 04 Nov
United
269 €
direct
28 Oct
- 30 Oct
United
271 €
direct
29 Oct
- 05 Nov
Frontier Airlines
271 €
29 Oct
- 27 Nov
Frontier Airlines
272 €
23 Oct
- 26 Oct
Frontier Airlines
277 €
direct
29 Oct
- 02 Nov
Frontier Airlines
285 €
29 Oct
- 27 Nov
United
290 €
direct
28 Oct
- 02 Nov
Frontier Airlines
292 €
31 Oct
- 04 Nov
United
295 €
direct
23 Oct
- 28 Oct
Frontier Airlines
306 €
24 Oct
- 26 Oct
Frontier Airlines
359 €
23 Oct
- 27 Oct
Frontier Airlines
363 €
23 Oct
- 28 Oct
United
387 €
direct
24 Oct
- 27 Oct
United
391 €
direct
23 Oct
- 27 Oct
United
421 €
direct
24 Oct
- 26 Oct
United
483 €
direct
Also check the deals for one-way flights from Washington to San Juan in October .
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