The five hotels nearest Sea-Air-Space Exposition, April 4-7, 2027, are all in the National Harbor waterfront cluster, within a 7-minute walk of the Gaylord National Resort and Convention Center. Walking distance to the show floor determined the order, with star rating as the secondary factor. National Harbor is in Maryland, across the Potomac from Washington, D.C., and reaching it from downtown requires a drive, a rideshare, or a water taxi, so booking anywhere outside this cluster means commuting to every session.
Sea-Air-Space on-site, or walk in from Waterfront Street
The Gaylord National is both the venue and a hotel, which means you can sleep 90 seconds from the show floor or walk in from one of five nearby properties on Waterfront Street. Staying on-site removes every logistics variable: no morning commute, no bag check, no scramble between sessions. The trade-off is that on-site rooms carry premium pricing, and the surrounding National Harbor hotels offer comparable waterfront access at a range of price points.
For a naval and defense audience with packed schedules, the calculus usually favors proximity. Reagan National is the closest airport to the cluster. The Hampton Inn and Suites at 250 Waterfront Street is 0.1 miles from the Gaylord entrance, the Westin is a 5-minute walk along the waterfront, and the Residence Inn adds kitchen facilities for attendees staying the full four days. None of these require a vehicle.
If you are traveling from a Washington, D.C. address, budget 30 to 45 minutes each way. There is no Metro station at National Harbor, so a rideshare or a drive is the practical option from the District side of the river.
Getting to Sea-Air-Space Exposition without a car
- Water taxi: City Cruises runs a seasonal Potomac water taxi between Old Town Alexandria and the National Harbor pier, a short walk from the Gaylord entrance. Check that it is running before you rely on it.
- Rideshare: Drop-off on Waterfront Street puts you at the Gaylord front door. Budget 20-35 minutes from Reagan National Airport depending on traffic.
- No Metro: nothing on the WMATA rail network comes close. Southern Avenue on the Green Line is the nearest station on this side of the Potomac, several miles out and needing a bus or rideshare connection.
- Parking: The Gaylord National and the surrounding National Harbor garage both offer daily parking. Rates vary by day and event load.
- Reagan National Airport (DCA) is the closest airport, 6.9 miles north by road according to the show's own travel page.
The Waterfront Street five, compared
| Hotel | Distance to venue | Walk time | Star rating | Guest score | Best for |
|---|---|---|---|---|---|
| Hampton Inn & Suites National Harbor-NEWLY RENOVATED | 0.10 mi | 2 min | 3 | 8.6 | Closest non-venue option, mid-range budget |
| Residence Inn National Harbor Washington, DC Area | 0.15 mi | 3 min | 3 | 8.8 | Multi-night stays, kitchen facilities |
| The Westin Washington National Harbor | 0.23 mi | 5 min | 4 | 8.6 | Full-service comfort, waterfront dining |
| AC Hotel National Harbor Washington, DC Area | 0.26 mi | 5 min | 4 | 8.3 | Design-forward, Marriott loyalty points |
| Hyatt Place National Harbor | 0.35 mi | 7 min | 3 | 9.1 | Highest guest score in the cluster, Hyatt loyalty |
April weather and what to pack for Sea-Air-Space
Sea-Air-Space Exposition runs in early April, when the DC area averages highs around 63°F and lows in the mid 40s, with rain likely on at least one of the four days. The walk between waterfront hotels and the Gaylord entrance is exposed to wind off the Potomac, so a waterproof layer matters even for a 2-minute walk.
The hotels
Hampton Inn & Suites National Harbor-NEWLY RENOVATED
250 Waterfront St
8.6685 reviews
At 0.10 miles from the Gaylord National entrance, this is the closest bookable hotel to Sea-Air-Space Exposition outside the venue itself, and its mid-range pricing gives attendees a practical alternative to on-site rates.
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Residence Inn National Harbor Washington, DC Area
192 Waterfront St
8.8122 reviews
Attendees staying all four days of Sea-Air-Space Exposition benefit from the Residence Inn's full kitchenettes, which cut meal costs and give flexibility around the show schedule.
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The Westin Washington National Harbor
171 Waterfront St
8.61,018 reviews
The Westin is the highest-star option within a 5-minute walk of Sea-Air-Space Exposition, offering full-service amenities including a restaurant and spa for attendees who want more than a standard mid-range stay.
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AC Hotel National Harbor Washington, DC Area
156 Waterfront Street
8.3553 reviews
A 4-star property at 0.26 miles from the Gaylord National, the AC Hotel gives Marriott Bonvoy members a points-earning option within a 5-minute walk of the Sea-Air-Space Exposition show floor.
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Hyatt Place National Harbor
123 Waterfront Street
9.12,364 reviews
The Hyatt Place carries the highest guest score in the National Harbor cluster at 9.1, and its position at 123 Waterfront Street puts Sea-Air-Space Exposition attendees 7 minutes on foot from the Gaylord National entrance.
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Frequently asked questions
Should I stay at the Gaylord National or a nearby hotel for Sea-Air-Space Exposition?＋
Staying at the Gaylord National puts you 90 seconds from the show floor and removes every morning logistics variable. The surrounding National Harbor hotels on Waterfront Street are 2 to 7 minutes away on foot and offer a range of price points. For a four-day event with packed programming, the time saved by staying on-site or within the immediate cluster adds up.
Is Sea-Air-Space Exposition walkable from downtown Washington, D.C.?＋
No. The Gaylord National Resort and Convention Center is in National Harbor, Maryland, across the Potomac River from the District. There is no pedestrian route from downtown. Attendees coming from D.C. need a rideshare, a drive, or a water taxi. Budget 30 to 45 minutes each way from central D.C. depending on traffic.
Which hotel is closest to Sea-Air-Space Exposition for attendees who want to walk?＋
The Hampton Inn and Suites National Harbor at 250 Waterfront Street is 0.10 miles from the Gaylord National entrance, a 2-minute walk. It is the closest bookable hotel to the Sea-Air-Space Exposition show floor outside the venue itself.
Is there a Metro station near Sea-Air-Space Exposition?＋
There is no Metro station at National Harbor, and the nearest rail stations are several miles away with a bus or rideshare connection at the end. Most attendees skip the Metro entirely and take a rideshare from Reagan National or from their D.C. hotel.
What airport should I fly into for Sea-Air-Space Exposition?＋
Reagan National Airport (DCA) is the closest airport, 6.9 miles from the Gaylord National by road. A rideshare from DCA to National Harbor typically takes 15 to 25 minutes depending on traffic. Dulles (IAD) and BWI are farther and add significant travel time.
Are there extended-stay options near Sea-Air-Space Exposition for the full four days?＋
The Residence Inn National Harbor at 192 Waterfront Street is the best extended-stay option in the cluster, with full kitchenettes in every room and a 3-minute walk to the Gaylord National entrance. It suits attendees who want to manage meal costs across a multi-day event.
