Cheapest one-way flights from Rockford (RFD) to Lisbon (LIS), December

5 dates in December, from $ 463. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
4 Dec Allegiant Air
14 Dec Allegiant Air
13 Dec Allegiant Air
25 Dec Allegiant Air
18 Dec Allegiant Air
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Cheapest deals for the full year

Deals for return flights from Rockford to Lisbon in December.

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Updated Oct 14, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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