OneGo offers all-you-can-fly subscription service, starting at $1,500 a month

Frequent fliers trying to stick to a budget could get some help starting Monday.

For a flat monthly fee, new service OneGo offers travelers as many flights as they can take on routes in the United States, all serviced by major airlines.

See also: The best airlines in 2015 don't include any based in the U.S.

The monthly fee varies depending on the region: The West, with 35 routes, is $1,500; The East, with 158 routes, is $2,300; Central, with 35 routes, is $1,950; and the National plan with more than 500 routes is $2,950. Each plan also has available add-ons like last-minute booking, unlimited changes and more reservations, which add $500-$1,950 to the monthly price. There is no long-term commitment required. Read more...

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