AirHint found the following cheapest return flights from Chicago (ORD) to San Juan (SJU)
in March 2025 (see full year ).
Return flights
01 Mar
- 04 Mar
Frontier Airlines
142 €
01 Mar
- 05 Mar
Spirit Airlines
144 €
direct
02 Mar
- 05 Mar
Frontier Airlines
161 €
01 Mar
- 04 Mar
Spirit Airlines
178 €
direct
02 Mar
- 05 Mar
Spirit Airlines
179 €
direct
04 Mar
- 11 Mar
Frontier Airlines
200 €
01 Mar
- 08 Mar
Frontier Airlines
200 €
05 Mar
- 08 Mar
Frontier Airlines
200 €
06 Mar
- 10 Mar
Frontier Airlines
216 €
02 Mar
- 06 Mar
United
224 €
27 Mar
- 01 Apr
United
345 €
28 Mar
- 04 Apr
United
450 €
27 Mar
- 05 Apr
United
468 €
29 Mar
- 02 Apr
United
480 €
27 Mar
- 01 Apr
United
487 €
direct
31 Mar
- 06 Apr
United
505 €
direct
28 Mar
- 04 Apr
United
522 €
direct
29 Mar
- 02 Apr
United
539 €
direct
29 Mar
- 05 Apr
United
556 €
27 Mar
- 05 Apr
United
574 €
direct
Also check the deals for one-way flights from Chicago to San Juan in March .
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.