AirHint found the following cheapest return flights from Washington (IAD) to San Juan (SJU)
in December 2024 (see full year ).
Return flights
31 Dec
- 14 Jan
United
$ 270
direct
31 Dec
- 09 Jan
Frontier Airlines
$ 290
30 Dec
- 13 Jan
United
$ 352
direct
30 Dec
- 09 Jan
United
$ 407
31 Dec
- 09 Jan
United
$ 412
direct
30 Dec
- 09 Jan
United
$ 449
direct
27 Dec
- 17 Jan
Frontier Airlines
$ 493
29 Dec
- 10 Jan
Frontier Airlines
$ 521
24 Dec
- 25 Dec
American Airlines
$ 525
29 Dec
- 12 Jan
United
$ 533
direct
28 Dec
- 31 Jan
Frontier Airlines
$ 533
24 Dec
- 26 Dec
United
$ 541
direct
22 Dec
- 25 Dec
Delta
$ 561
25 Dec
- 30 Dec
American Airlines
$ 577
30 Dec
- 31 Dec
United
$ 578
direct
24 Dec
- 28 Dec
Frontier Airlines
$ 582
24 Dec
- 25 Dec
United
$ 585
direct
25 Dec
- 29 Dec
Frontier Airlines
$ 595
24 Dec
- 28 Dec
United
$ 595
direct
25 Dec
- 31 Dec
American Airlines
$ 639
Also check the deals for one-way flights from Washington to San Juan in December .
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers.
Only the cheapest flights are offered.
Select a price to book and secure these cheap prices.