GSP to WAS, Greenville-Spartanburg International Airport to Cheap Flights

Based on HopeGoo data, American Airlines offers one-way fares as low as US$68 on Cheapest nonstop routes (e.g. GSP to DCA on Wed, Mar 25), while American Airlines offers Cheapest nonstop round-trips from US$133 departing on Wed, Mar 18 and returning on Wed, Mar 25.

It takes about 1 hour 37 minutes to fly from Greenville to Washington D.C..

By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from Greenville to Washington D.C. is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

To find best deals on flights from Greenville to Washington D.C., you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Mar 25, with one-way flights priced at just US$68. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is American Airlines. · Set up price alerts to easily monitor ticket prices without having to check every day. · Check HopeGoo flight deals and promo codes frequently. · Avoid peak season unless you book very early. It seems the peak season for Washington D.C. travel is around July. · Get exclusive promo codes for HopeGoo app users.

The cheapest months to fly from Greenville to Washington D.C. is September, when demand for travel is lower.

After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Greenville to Washington D.C. on March 18, 2026 with American Airlines, with prices starting at US$133.

The time difference between Washington D.C. and Greenville is 0h.

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