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Trip from San Jose, CA to Union City, CA

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Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards

Drive Time

30m

Distance

23 mi

37 km

Drive Score

7/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$5

one way

EV Charging

Unknown

Best Time to Leave

Save up to 8 min
4 AM
0h 28m ★
6 AM
0h 31m
8 AM
0h 36m
10 AM
0h 32m
12 PM
0h 32m
3 PM
0h 33m
5 PM
0h 36m
8 PM
0h 29m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

city and county seat of Santa Clara County, California, United States

San Jose, CA

Wikimedia Commons

city in Alameda County, California, United States

Union City, CA

Wikimedia Commons

Trip Overview

Stretching just 23.3 miles, this quick trip from San Jose to Union City is an ideal day outing that typically takes about 30 minutes to complete. You will navigate primarily via Coleman Avenue and I-880 North, also known as the Nimitz Freeway, to reach your destination within the Pacific Coast region. Because the journey is so short, you certainly won't need an overnight stay, making it a perfect candidate for a flexible, single-day excursion. Budgeting about $3 for fuel should be plenty to cover the transit between these two California cities. It is a straightforward, practical route that prioritizes efficiency over sightseeing, allowing you to move between these urban hubs with minimal planning.

Main Roads

Road Distance Duration
Nimitz Freeway 10 mi 11m
I 880 8.5 mi 9m
Alvarado Boulevard 2.1 mi 4m
Coleman Avenue 1.4 mi 2m
Union City Boulevard 0.3 mi <1m
Cambridge Way <0.1 mi <1m
Fremont Boulevard <0.1 mi <1m
North Market Street <0.1 mi <1m
Longest stretch: Nimitz Freeway — 10 mi, about 11m

Turn-by-Turn Driving Directions

Step-by-step road directions between San Jose, CA and Union City, CA.

1

Start on North Market Street

196 ft · 8 sec · North Market Street
2

Continue on Coleman Avenue

1.4 mi · 2 min · Coleman Avenue
Use the straight lane.
3

Take the ramp

0.3 mi · 42 sec
Toward I 880 North: Oakland Use the right lane.
4

Merge onto I 880

8.5 mi · 9 min · I 880
Use the straight / slight right lanes.
5

Keep slight right at fork onto I 880

10.0 mi · 11 min · Nimitz Freeway
Use the straight / slight right lanes.
6

Take the exit

0.2 mi · 24 sec
Exit 22 Toward Alvarado Boulevard, Fremont Boulevard North Use the straight / slight right lanes.
7

Turn left onto Fremont Boulevard

227 ft · 9 sec · Fremont Boulevard
Use the left / straight lanes.
8

Continue on Alvarado Boulevard

2.1 mi · 4 min · Alvarado Boulevard
Use the left lane.
9

Turn right onto Union City Boulevard

0.3 mi · 38 sec · Union City Boulevard
Use the right lane.
10

Turn left onto Cambridge Way

246 ft · 10 sec · Cambridge Way
Use the left lane.
11

Arrive at destination

Cambridge Way

Heads-up: tricky spots

5 of 7

5 decision points cluster between mile 1.5 and 23 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

7
1.5 mi into trip | ~2m in

Take the ramp toward I 880 North: Oakland

Lane positioning matters here

Use the right lane. Toward I 880 North: Oakland
6
10.3 mi into trip | ~13m in | I 880 / Nimitz Freeway

Keep slight right at fork onto I 880 / Nimitz Freeway

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight right lanes.
8
20.3 mi into trip | ~24m in

Take the exit toward Alvarado Boulevard, Fremont Boulevard North

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight / slight right lanes. Exit 22 Toward Alvarado Boulevard, Fremont Boulevard No...
6
22.7 mi into trip | ~29m in | Union City Boulevard

Turn right onto Union City Boulevard

Lane positioning matters here

Use the right lane.
6
23 mi into trip | ~30m in | Cambridge Way

Turn left onto Cambridge Way

Lane positioning matters here

Use the left lane.

Fuel & Cost

Regular Gas

$5.29 one way

$10.57 round trip

$5.84/gal 25.4 MPG avg 8 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $6.02 $5.45 $10.90
premium $6.18 $5.59 $11.19
diesel $5.61 $5.08 $10.16

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$5

Estimated CO2 emission: 8 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $2 in charging · 0 stops · 63% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 6.9 0 $2.41 $1.10
Efficient EV 5.8 0 $2.01 $0.92
EV Truck/SUV 9.2 0 $3.22 $1.47

Gas CO2

8 kg

EV CO2

3 kg (63% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast as of Apr 19, 2026

Origin

San Jose, CA

Late night in San Jose on Tuesday

Local time

5:52 AM

PDT

Current temp

49°F

Unavailable

Live forecast

Destination

Union City, CA

Late night in Union City on Tuesday

Local time

5:52 AM

PDT

Current temp

52°F

Unavailable

Live forecast

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

3 degrees warmer at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

30m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

What kind of drive is this?

Expect a turn-heavy local drive that transitions quickly into a high-traffic interstate environment. You will spend your initial time navigating the local streets of San Jose, where the longest stretch of road is a brief segment on Coleman Avenue before you merge onto the Nimitz Freeway. While the highway share is technically listed at 0 percent, you will rely heavily on I-880 North as your primary corridor to head north. The character of this drive is functional and utilitarian, lacking long, uninterrupted stretches of open road. Behind the wheel, you should prepare for a steady pace as you navigate the transition from city surface streets onto the arterial flow of the I-880 corridor.

80% highway — fuel and pacing are the main things to plan.
11 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 10 mi on Nimitz Freeway.

How Hard Is This Drive?

6/10

This is a straightforward highway drive that stays mostly on Nimitz Freeway and I 880. You will hit about 7 points where you need to pay attention to lane position or signs. The trickiest moment comes around 1.5 miles in.

Driving Effort 6/10

Moderate - straightforward overall, but long enough or busy enough to require pacing

Balances navigation complexity with total wheel time.

This drive requires moderate attention. Across 23 miles you will encounter 7 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.

Where does it get tricky?

The main spots that need attention: at 1.5 miles: Lane positioning matters here; at 10.3 miles (I 880 / Nimitz Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 20.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

On the drive from San Jose, CA to Union City, CA, road signs begin pointing toward Fremont Boulevard North along the way.

Fremont Boulevard North

20.3 mi in | ~24m

About the Cities

Starting in San Jose, CA

Full guide →

Founded 1777

Often called "the capital of Silicon Valley", San Jose is the largest city in the Bay Area, 3rd largest in California, and the 12th largest city in the United States, with a population of over 997,000 residents as of 2024. It was named the 6th safest big city in the U.S. in 2015. This clean, sprawling metropolis has sports, beautiful vistas, and ethnic enclaves and bleeds into the greater Bay Area for travelers who want to take their time in Northern California.

Top landmarks

  • Winchester Mystery House — Mansion in San Jose, California.
  • San Jose Diridon station — railway station complex in San Jose, California
  • Rosicrucian Egyptian Museum — building in San Jose, California, United States

Arriving in Union City, CA

Full guide →

Union City is a city of 70,000 people (in 2020) in the southern part of the East Bay portion of the San Francisco Bay Area region of California. It is bordered to the north by the city of Hayward and to the south by the city of Fremont. It is part of the Tri-Cities area, which consists of Union City, Fremont, and Newark.

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 30m. Total distance: 23 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

30m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

First-Time Driver

Mostly highway driving (80%). Some complex stretches to watch for.

Frequently Asked Questions

The longest stretch is about 10 miles on Nimitz Freeway. The full list of main roads is in the Roads section above.

It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Union City, CA before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.

Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.

The main spots that need attention: at 1.5 miles: Lane positioning matters here; at 10.3 miles (I 880 / Nimitz Freeway): Highway fork - watch signs carefully. Lane positioning matters here; at 20.3 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.

Yes — San Francisco Maritime National Historical Park and Rosie the Riveter WWII Home Front National Historical Park. See the National Parks section for detour distances and tips on detours.

Yes. A round trip is manageable in a single day if you plan a break at Union City, CA before heading back.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.

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