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HLH to SEA: distance & flight time
Ulanhot (Ulanhot Airport) → Seattle (Seattle Tacoma International Airport)
4,892 mi
7,873 km · 4,251 nm
10h 4m
estimated nonstop flight time
-15h
time difference · heading northeast
See live HLH→SEA fares Phone-only fares on this route — call free
Flight time details
4,892 miles nonstop takes roughly 10h 4m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time set-back when reading arrival times on your ticket.
The two airports
- HLH — Ulanhot Airport · Ulanhot, China
- SEA — Seattle Tacoma International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near HLH
- DBC · Baicheng Chang'an Airport68 mi away
- NDG · Qiqihar Sanjiazi Airport116 mi away
- NZL · Chengjisihan Airport121 mi away
- YIE · Arxan Yi'ershi Airport126 mi away
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is HLH from SEA?
The flight distance from Ulanhot (HLH) to Seattle (SEA) is 4,892 miles (7,873 km, 4,251 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HLH to SEA?
A nonstop flight takes about 10h 4m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Ulanhot and Seattle?
Seattle is 15 hours behind Ulanhot.
What is the cheapest way to fly from HLH to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HLH–SEA that never appear on search engines, with no booking fees.