United Airlines DCA Terminal +1-888-839-0502 Hi there! In all honesty, my flight out of the United Airlines DCA Terminal was a good one. It is very easy to traverse, especially at peak hours, because to the terminal's excellent cleanliness, organization, and signage. The security process went really swiftly, and there were lots of places to relax or have a snack before boarding. There was always a difference since the staff was helpful and friendly. Overall, the vacation began smoothly and without incident. Absolutely, I would fly from here once more! for more: https://www.terminalfind.com/united-airlines/united-airlines-dca-terminal-ronald-reagan-washington-national-airport/