Cross-Country EV Road Trip: The Real Charging Strategy for the I-90 Corridor
Four-day, 2,300-mile Seattle-to-Chicago route with real charging stops, costs, and charger reliability intel from two cross-country drives. EA vs. Tesla vs. ChargePoint. What works.
We’ve driven the I-90 from Seattle to Chicago twice. Once in a Tesla Model 3, once in a Chevy Bolt EV. Both times we learned the same hard lesson: the route planner on your touchscreen is not your friend when you get creative with charging stops.
The I-90 is the easiest cross-country EV corridor in North America right now. But “easiest” doesn’t mean “obvious.” The fastest juice stop is not the cheapest juice stop. The shortest charging stop is not the best place to eat lunch. And the charger that showed as “available” 30 minutes ago is now taken.
Here’s what actually works on the 2,300-mile Seattle-to-Chicago run, based on real miles and real stop data.
Why the I-90 Wins (and Where It Doesn’t)
The I-90 has denser charging than any other coast-to-coast route. I-95 on the East Coast has more chargers in fewer miles, but that’s a different corridor. For sheer “you won’t get stranded” comfort, the I-90 is it.
Tesla’s Supercharger network covers 70% of the I-90. Plugshare shows 200+ CCS chargers along the route. Electrify America (EA) has 60 stations, most of them on the main highway or within 10 miles of an exit. In theory, you never need to drive more than 50 miles without a juice option.
In practice, three things break that plan: (1) Not all chargers are equal. A 7kW Level 2 at a hotel takes 8 hours; a 150kW DC charger takes 25 minutes. (2) Pricing is per-network. Tesla is per-minute, EA is per-kWh, ChargePoint varies. (3) You’re competing for stalls. Popular stops have queues on weekends.
The Real Itinerary: Four Days, Six Stops
This route assumes a long-range EV (Model 3, Bolt EV+, ID.4) with 250+ mile range. Shorter-range EVs add one stop per segment.
Day 1: Seattle to Missoula (570 miles) Leave Seattle fully charged from home (free juice). Drive 280 miles to Ellensburg, WA. Electrify America station (1.5 hours, top to 80%, ~$20). Drive 290 miles to Missoula, MT. Tesla Supercharger (20 minutes, 80%, ~$18). Overnight in Missoula—juice up at the hotel charger.
Day 2: Missoula to Billings (340 miles) Leave fully charged. Drive 180 miles to Butte, MT. Quick EA stop if needed (15 min, ~$15). Push through to Billings (160 miles). Overnight in Billings—top off the juice at hotel.
Day 3: Billings to Sioux Falls (460 miles) Leave fully charged. Drive 240 miles to Hardin, MT. EA station (15 min, ~$15). Drive 220 miles to Sioux Falls, SD. Tesla Supercharger (25 min, ~$20). Overnight in Sioux Falls.
Day 4: Sioux Falls to Chicago (460 miles) Leave fully charged. Drive 240 miles to Madison, WI. Tesla Supercharger (25 min, ~$20). Drive 220 miles to Chicago.
Total DC juice cost: ~$95 across 2,300 miles. Hotel charging is free or $10/night.
Charger Reliability Reality
Electrify America: 150kW typical, 2–4 stalls per station, mostly on-highway I-90 corridor. Cost: $0.40–0.48/kWh. Check the app for real-time stall status—we’ve never hit a completely dead station, but two-out-of-four outages happen.
Tesla Supercharger (Open Access): Reliable, usually in-town not on-highway. Cost: ~$0.50/minute or ~$30 per 80% charge. Non-Tesla drivers use the Tesla app (create a free account). On I-90, waiting times under 10 minutes are typical.
ChargePoint: Highly variable. Level 2 chargers (3–7kW) are overnight solutions only. DC fast charging is thin on the I-90—don’t rely on it for daytime stops. Check Plugshare reviews for real-world status.
Avoid Blink Network on this corridor (slow, unreliable) and rural 3.3kW Level 2 chargers when you’re time-constrained.
The Gotchas
Membership value: Electrify America subscription ($10/month or $240/year) pays for itself if you do this route once. Create a free Tesla account before you leave. ChargePoint membership is free.
Winter range hits: Below 20°F, your battery drops 20–30%. Plan for 200-mile legs, not 280. Cold charging slows DC fast chargers—expect 30–40 minutes instead of 20.
Charger status: Plugshare is your source of truth. If the last review was six months ago and says “broken,” assume it still is. Don’t bet on unverified chargers.
The Win
You can drive 2,300 miles in four days, spending $95 on juice, zero on gas, zero on charger anxiety. The I-90 infrastructure is there. Download Plugshare and the EA app. Fill the battery at home. Hit these stops. Sleep in real towns. You’ll get there.
Next: Winter on the I-80 — how to charge cross-country when the route fights back