You can drive to Anchorage, but only from two directions, and one of them closes seasonally
Anchorage sits at the end of the Glenn Highway (Alaska Route 1), which connects to the Alaska-Canada Highway system in the south. You can drive there from the continental United States, but the route is long, remote, and has real constraints. The main road in is the Glenn Highway from the Matanuska-Susitna Valley; the alternate route is the Seward Highway from the Kenai Peninsula. Both are open year-round, though winter driving conditions on either can be severe.
The catch: there is no road that goes all the way through to Anchorage from the Lower 48 states in a straight line. You must drive north through Canada on the Alaska Highway (also called the Alcan), which adds 1,400 miles to the journey and requires you to cross an international border. The total drive from Seattle is roughly 2,350 miles and takes 35 to 40 hours of actual driving time, spread across at least four days.
Key Takeaways
- The Alaska Highway from British Columbia is the only road route from the continental US to Anchorage, requiring a border crossing into Canada and adding significant distance.
- Winter driving on the Glenn Highway and Seward Highway is hazardous; both routes see ice, snow, and whiteout conditions from October through April.
- Fuel costs and vehicle wear are substantially higher than a typical road trip because of distance, remote terrain, and limited services between towns.
- You will need a valid passport or passport card to cross into Canada, and your vehicle registration and proof of insurance are required at the border.
- The drive is feasible in summer and early fall; winter driving requires winter tires, emergency supplies, and experience with cold-weather vehicle operation.
The Alaska Highway route and what to expect
The standard route from the Lower 48 is Seattle or Portland to Dawson Creek, British Columbia (where the Alaska Highway officially begins), then north through British Columbia and Yukon Territory to the Alaska border near Watson Lake. From there, the highway continues to Whitehorse, Yukon, then south into Alaska and eventually to Anchorage via the Glenn Highway. This is roughly 2,350 miles from Seattle and 2,450 miles from Portland.
The Alaska Highway itself is paved for its entire length, but it is a two-lane road through wilderness for much of the journey. Cell service is spotty. Gas stations exist but are spaced 50 to 100 miles apart in some sections, and prices are higher than in the Lower 48 — expect to pay 20 to 40 percent more per gallon once you cross into Canada and Alaska. Towns with services (food, lodging, repairs) are real destinations, not just exits off a highway.
The drive is most practical from late May through September. Winter driving (October through April) is possible but demands winter tires, emergency supplies (blankets, food, water, a first-aid kit, jumper cables, a shovel), and comfort with driving on ice and snow. The road is maintained, but conditions change rapidly, and help is far away if you slide off or break down.
Border crossing requirements and documents
You will cross into Canada at the US-Canada border, typically near Blaine, Washington (if coming from the west coast) or at one of the northern Montana crossings. You will need a valid passport, passport card, or NEXUS card. A driver's license alone is not sufficient. If you are traveling with children, each child needs their own travel document — a birth certificate is not enough for entry into Canada.
At the border, have your vehicle registration and proof of insurance ready. The border agent may ask where you are going, how long you will be in Canada, and whether you are carrying any restricted items (firearms, certain foods, large amounts of cash). Be straightforward. If your vehicle is financed or leased, bring the loan or lease agreement; some agents ask to confirm you have permission to take the vehicle across the border.
Returning to the US from Alaska, you will cross back into the US at the Alaska-Canada border (near the town of Beaver Creek, Yukon, if you take the main route). The same documents explore. US citizens re-entering the US need a passport or passport card; permanent residents need a green card.
Fuel, vehicle wear, and the true cost of the drive
The distance and terrain mean fuel and maintenance costs are substantially higher than a typical road trip. A vehicle averaging 25 miles per gallon will use roughly 94 gallons of fuel to reach Anchorage from Seattle. At current prices (which vary by location and season), expect to spend $350 to $500 on fuel alone, depending on gas prices along the route. Prices in Canada and Alaska are typically higher than in the Lower 48.
The remote terrain and long stretches between services also increase wear on your vehicle. Gravel roads, potholes, and rough pavement are common in sections of the Alaska Highway. Budget for potential repairs: a cracked windshield, a bent rim, or suspension damage is not uncommon on this route. Carry a spare tire, and consider bringing extra oil and coolant. If your vehicle has high mileage or known mechanical issues, have it inspected before you leave.
Lodging and food add another $200 to $400 to the trip, depending on how many nights you spend on the road and where you stop. Budget-friendly options (motels, diners) exist in most towns, but choices are limited in remote sections.
Summer versus winter driving conditions
Summer (June through August) is the safest and most comfortable time to drive to Anchorage. Days are long, temperatures are mild (50 to 70 degrees Fahrenheit in most areas), and the road is clear. This is also peak tourist season, so lodging books up quickly and prices are higher. Plan ahead if you are traveling in July or August.
Fall (September through early October) is still feasible but weather becomes unpredictable. Snow can fall in the high passes, and daylight hours shrink rapidly. By late September, winter conditions are possible.
Winter (October through April) is hazardous. The Glenn Highway and Seward Highway see heavy snow, ice, and whiteout conditions. Temperatures drop to 0 to 20 degrees Fahrenheit or lower. Winter tires are essential — all-season tires are not adequate. Many travelers who attempt this drive in winter experience delays, slide-offs, or breakdowns. If you must drive in winter, do so only if you have winter driving experience and your vehicle is equipped and maintained for cold weather.
Alternate routes and what they add
There is no true alternate route to Anchorage by road from the Lower 48. The Glenn Highway is the main entrance. The Seward Highway (Alaska Route 1) connects Anchorage to the Kenai Peninsula and is sometimes used as a return route, but it does not provide an alternate path from the south — it branches off the Glenn Highway near Anchorage.
Some travelers fly to Anchorage instead of driving, which eliminates the 2,350-mile journey but costs $300 to $600 per person for a flight from Seattle or Portland. If you are considering whether to drive or fly, factor in the fuel, lodging, food, and vehicle wear against the flight cost and your time. A road trip makes sense if you want the experience or plan to spend time exploring Alaska; flying makes sense if you want to reach Anchorage quickly and minimize costs.
Preparing your vehicle and planning stops
Before you leave, have your vehicle inspected by a mechanic. Check the battery, brakes, tires, oil, coolant, and hoses. Replace worn tires; the Alaska Highway is hard on tires, and a blowout in a remote area is a serious problem. Top off all fluids and bring extra oil and coolant with you.
Plan your stops in advance. Major towns along the route include Prince George, British Columbia; Fort St. John, British Columbia; Whitehorse, Yukon; and Tok, Alaska. From Tok, it is roughly 330 miles to Anchorage via the Glenn Highway. Lodging in these towns fills up in summer, so book ahead. read offline maps (Google Maps, Gaia GPS) in case cell service drops. Bring a paper map as backup.
Pack emergency supplies: a first-aid kit, blankets, a flashlight, jumper cables, a shovel, sand or kitty litter for traction, water, non-perishable food, and a phone charger. In winter, add hand warmers, extra blankets, and a small heater or candles (never run your engine in a closed vehicle). Tell someone where you are going and when you expect to arrive.
Frequently Asked Questions
Do I need a passport to drive to Anchorage?
Yes. You must cross into Canada, which requires a valid passport, passport card, or NEXUS card. A driver's license is not sufficient. Children need their own travel documents; a birth certificate does not meet the requirement for entry into Canada.
Can I drive to Anchorage in winter?
It is possible but hazardous. Winter tires are essential, and you need experience driving on ice and snow. The Glenn Highway and Seward Highway see heavy snow and whiteout conditions from October through April. Many travelers experience delays or breakdowns. Summer and early fall are safer and more practical.
How much does it cost to drive to Anchorage from Seattle?
Fuel typically costs $350 to $500, lodging and food add $200 to $400, and vehicle maintenance or repairs can add another $100 to $300. Total budget roughly $650 to $1,200 depending on your vehicle's fuel economy, where you stay, and whether repairs are needed. Flying costs $300 to $600 per person but saves time and wear on your vehicle.
What if my vehicle breaks down on the Alaska Highway?
Cell service is unreliable, so help may take hours to arrive. Carry a spare tire, jumper cables, and basic tools. Stay with your vehicle if you break down; it is easier to spot than a person walking. In winter, run the engine only briefly to conserve fuel and prevent carbon monoxide buildup. Tell someone your route and expected arrival time before you leave.
Is the Alaska Highway paved the whole way?
Yes, the Alaska Highway is paved for its entire length from Dawson Creek, British Columbia, to the Alaska border. However, it is a two-lane road through wilderness, and pavement quality varies. Gravel shoulders, potholes, and rough sections are common. The Glenn Highway from the Alaska border to Anchorage is also paved.