How to Buy a SIM Card in Washington, USA in 2026
Flying into Washington, DC and wondering whether you can buy a SIM card at the airport? You can at Dulles, and sometimes at Reagan National, but airport SIMs are the expensive option, and an eSIM set up before you fly saves the search altogether. This guide covers what each airport sells, where to buy more cheaply in the city, and which of our eSIMs suits a DC trip. It is about Washington, DC; if you are heading to Washington state, see our Seattle SIM card guide.
Landing at Dulles (IAD)
Most international flights arrive at Dulles. One guide says SIM cards are sold at convenience stores such as Hudson News and from vending machines in the main terminal. Some of those stores are before security in the terminal building and some are after security in the concourses, so if you are arriving, look in the terminal building rather than the gates. The airport's own directory is the most reliable way to check what is open before you land.
Landing at Reagan National (DCA)
Reagan National is the closer airport to the city and handles mostly domestic flights. One guide mentions smaller kiosks near baggage claim and airport shops offering prepaid plans, but says availability depends on the time of day and the flight schedule. Do not count on finding one after a late arrival.
Cheaper in the city
A 2026 guide from one of the prepaid networks advises skipping airport convenience-store SIMs because they cost more, and buying from an authorised store in town instead. In DC that means the carrier stores in areas such as Georgetown, Dupont Circle and Downtown DC, or a big retailer such as Walmart or Best Buy. One guide notes that no ID is needed to buy a prepaid SIM in the United States.
A physical SIM needs an unlocked phone and takes the place of your home SIM while it is in use, so your home number stops receiving texts until you swap back.
Our eSIMs for Washington
With an eSIM there is no shop to find: you install it before you fly, switch it on when you land, and keep your own SIM in the phone. Our USA plans run on the Verizon, AT&T and T-Mobile networks, include hotspot and start on first use:
- USA 5GB: $8 for 7 days, enough for a long weekend of maps, Metro times and messaging.
- USA 10GB: $15 for 14 days.
- USA 20GB: $27 for 30 days, for a longer stay or a trip that continues to other cities.
All three work nationwide, so if you continue from DC to New York, Boston or anywhere else in the country, the same eSIM keeps working and you do not need to buy again. Choose the size by how long you will be in the United States as a whole, not just in Washington.
If DC is one stop on a longer journey abroad, Global64 20GB ($15 for 14 days) also covers the United States and 63 other countries, including much of Europe. For a short business trip where your hotel and office have Wi-Fi, the Global PAYG Data eSIM ($20, including €17.50 of credit) charges only for the data you use and works on AT&T, Verizon and T-Mobile.
If you do buy a local SIM, the O2 SMS Only eSIM keeps a private UK +44 number receiving texts for $8 a month, so bank codes still reach you.
Washington options compared
| Option | Where you get it | Price | Data and validity |
|---|
| Airport SIM | Dulles shops and machines; some kiosks at Reagan | Higher than in town; no 2026 price found | Varies |
| Carrier or retail SIM | Stores in the city, Walmart, Best Buy | Varies by carrier | Varies |
| USA 5GB | Online, before you fly | $8 | 5 GB, 7 days |
| USA 10GB | Online, before you fly | $15 | 10 GB, 14 days |
| USA 20GB | Online, before you fly | $27 | 20 GB, 30 days |
| Global64 20GB | Online, before you fly | $15 | 20 GB, 14 days, 64 countries |
Our recommendation
For a few days of sightseeing in DC, install USA 5GB before you fly and you will be online as you leave Dulles or Reagan, without looking for a shop. Choose USA 10GB for two weeks. For more on prepaid options across the country, see our USA prepaid SIM card guide. Our eSIM installation guide explains the set-up, and every plan is on the USA eSIM page.
