Tourism to the province is driven by airlines like Philippine Airlines and passenger coach bus lines like locally owned Farinas Transit Company and Partas. A direct flight to and from Manila is provided by Interisland Airlines.
- Heritage City of Vigan – inscribed in the UNESCO World Heritage List, because it houses the most intact example of a Spanish colonial town in Asia. Other spots include pottery making and other forms of cottage industries. It also has hotels built in the "bahay na bato" ("stone house") style. Also located in the city is the residence of Father Jose Burgos, which is open to the public; and the Syquia Mansion, which is the Vigan residence of former President Elpidio Quirino.
- Beaches – most notable Ilocos Sur beaches include those in Cabangtalan (in Sinait, also known as Imelda’s Cove), Pug-os (in Cabugao); and the towns of Santa, Santa Maria, Santiago, San Esteban, and Candon.
- Churches – most notable of these churches include the Vigan Cathedral (which is the seat of the Archdiocese of Nueva Segovia, and where the remains of the Ilocano poet Leona Florentino is interred), Santa Maria Church (which is inscribed in the UNESCO World Heritage Sites list), Candon Church (has a grand facade and is famous for its tall bell tower and the longest painting in the Philippines) and Sinait Church (which houses the miraculous Statue of the Black Nazarene).
- Nature Spots – Scenic spots include the Banaoang River in Bantay (an extension of the Abra River), Pinsal Falls in Santa Maria, and Pikkang Falls in San Juan.
- Tirad Pass
Declared as a National Shrine, the pass located in the municipality of Gregorio del Pilar was the last stand of the Filipino Revolutionary Forces under General Emilio Aguinaldo.
- Bessang Pass
A monument stands on this strategic gap west of Cervantes, which served as the backdoor to General Yamashita’s last ditch defense during the last stage of World War II.
- Ancestral Houses
Kamestizoan District in Vigan is replete with ancestral houses with ancient tile roofs, massive hardwood floorings, ballustrades and azoteas in varying Spanish-Mexican-Chinese architectural styles.
- Pagburnayan (Jar)
The Ilocano jar called “burnay,” used for storing the local vinegar, local wine “basi,” and “bagoong” and as a decorative ware, is produced in factories using the pre-historic method in the south western end of Liberation Avenue in Vigan.
- Loom Weaving
Among the Ilocanos’ main cottage industries, it produces quality towels, blankets, table runners, and clothing materials with ethnic Ilocano designs.
- Santiago Cove
A stretch of golden sand beach in Santiago with amenities for picnics and water sports.
- Pinsal Falls
A favorite setting of many local films, Pinsal Falls features Angalo’s footprint, the legendary Ilocano giant. The falls is a few kilometers of rough road from the highway. Located at Barangay Babalasiwan, Sta. Maria. Other waterfalls in Ilocos Sur are CANIAW FALLS in Bantay, GAMBANG FALLS in Cervantes, AWASEN FALLS in Sigay and BARASIBIS in Sinait.
- Pug-os Beach
Resthouses and picnic sheds are found in this nearly white sand beach in Cabugao.
- Sulvec Beach
The rocky shore of Sulvec, Narvacan is a favorite stop of commuters and the locals. Nearby is the Narvacan Tourism Lodge.
- Apatot Beach
This cove in San Esteban is frequented by picnic goers. During the last stage of World War II, US Submarines surfaced in the area to unload arms and supplies for the USAFIP, NL.
- Candon Beach
The beach features amenities and facilities for visitors.
- Semana Santa
St. Paul’s Metropolitan Cathedral is the venue of religious rites during the Holy Week. The Good Friday procession features decorated carrozas bearing life-size statues of Spanish vintage. On Easter Sunday, the dawn celebration depicting the Resurrection of Christ, called “Sabet,” is a scene to behold.
- Viva Vigan Arts and Industry Festival
Every first week of May, Vigan plays host to visitors for this festival featuring painting and product exhibits, a Calesa parade, and other cultural activities.
- Tobacco Festival
Celebrated every last week of March in Candon City, as thanksgiving for the city’s bountiful harvest of tobacco.