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JetBlue Airlines via DealBase offers 1-way nationwide flights, with prices starting from $53.30. That's the lowest price we could find for select routes by at least $5. Book this travel deal by May 30 for travel from September 9 through October 20. Buy Now Tips On the DealBase landing page, click "JetBlue" in the top line to see this sale. We found this price on flights departing September 10 from Charleston, SC to Washington, D.C. All prices, dates, and booking details were valid at the time of publication.