Here's a good old fashioned fare war between American and United with big price drops between select cities across the nation. There are some especially good cross-country deals between Washington D.C. and California along with a slew of other routes that rarely go on sale. Fares start as low as $111 roundtrip.
Rules and restrictions vary by route. Available travel dates are generally scattered throughout the year with the most availability for fall and/or winter travel, excluding peak holidays. A few routes will have some scattered spring travel dates available and only a couple routes have availability during peak summer travel months. Click on the fare details below for more info.
This sale is unadvertised and fares may jump at any moment. These are all big price drops, which normally don't last very long after falling this low. Secure your low fare by booking now and taking advantage of the 24-hour risk-free cancellation to think about your plans.
Baltimore to Kansas City $111 roundtrip
Indianapolis to Baltimore $111 roundtrip
Grand Rapids to Baltimore $113 roundtrip
Charlotte to Ithica $113 roundtrip
Baltimore to Milwaukee $113 roundtrip
Fayetteville, AR to Washington D.C. $114 roundtrip
Washington D.C. to Little Rock $114 roundtrip
Erie, PA to Boston $117 roundtrip
Miami to San Diego $130 roundtrip
Washington D.C. to San Diego $133 roundtrip
Sacramento to Washington D.C. $134 roundtrip
Seattle to El Paso $144 roundtrip
Phoenix to Miami $144 roundtrip
Seattle to Tucson $154 roundtrip
Baltimore to Sacramento $164 roundtrip
Charlotte to Phoenix $193 roundtrip
All fares work in the reverse direction as well. There may be more similar price drops. Check flights from your city to see today's current finds.
Related: Which Washington DC Area Airport is Best? National, Dulles, or BWI?
These are Basic Economy fares. On American, this includes a carry-on bag plus a small personal item. On United, this only includes one small personal item. A full-size carry-on bag is not allowed on United. A checked bag costs $30 each way on either airline.
Seats will be assigned at random upon check-in for these prices. You may pay a fee to choose a seat or choose to upgrade to the standard Economy fare.
In general, it should cost $60 more roundtrip for an upgrade to a standard Economy fare. This will include a full-size carry-on bag on United. It will also include advanced seat selection and allow for ticket changes/upgrades on both American and United. A checked bag is the same $30 fee each way.
As an example, I found a flight on American departing Washington DCA on Sunday, September 1, returning from San Diego SAN on Saturday, September 7, for $133 roundtrip.