Book Cheap Flights Under $100

momondo works with hundreds of travel providers to bring you the top deals on flights under $100. By pooling deals from a multitude of providers, momondo makes it quick and simple for you to compare fantastic deals on both domestic and international flights under $100.

Scoring a flight under $100, be it one-way or round-trip, can depend on a few factors such as where you're headed, which airline you're flying with, and when you decide to buy your tickets. While round-trip tickets were once the norm, the rise of budget airlines and increased competition have changed the game. For domestic flights or shorter journeys, one-way tickets under $100 can often be a real bargain, especially when you choose a budget-friendly airline. If you're flying internationally or embarking on a longer trip, round-trip tickets under $100 usually offer better value.

Yes – momondo frequently features domestic flight deals under $100 within United States. Prices can vary based on your departure and arrival airports and the time of year or week, so if you don’t see something now, be sure to try again soon.

Yes – momondo also surfaces deals on international flights under $100, though availability may depend on whether you’re looking at one-way or round-trip options. International routes can cost a bit more, but deals are refreshed regularly – so check back often to find something that fits your travel plans and budget.