FFL Helper / Washington / San Juan

WAS → SJU

Washington (WAS) to San Juan (SJU)

Compare one-way fares for flights from Washington to San Juan.

Lowest fare $106

Distance 1,556 mi

Flight time 18h 18m

Airports IAD–SJU

Search this route

Ad. Ticket links are affiliate ads. We may earn a commission if you book. Advertising disclosure

By month: November 2026 from $106 · December 2026 from $315

Price calendar

October 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

November 2026

From $106

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1

2

3

4

5

6

7

8

9

10

11

12 $106

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Upcoming dates

San Juan SJU

$106

Nov 12, 6:07pm · 18h 18m · 1 stop

IAD → SJU · Frontier Airlines

Tickets

About this route

This calendar shows dated one-way fares from Washington to San Juan. Use it to see which days are cheaper before you search tickets.

Flight time and airport codes on this page are for the sample itinerary we have on file. Always confirm the live routing when you book Washington to San Juan.